The Washington State man accused of killing three people at a party on Friday night with an AR-15 read the rifle's instruction manual just moments before opening fire, court records show. 
 
 Allen Ivanov, 19, told detectives he bought the semi-automatic rifle a week ago for target practice and had even scheduled a safety class for August, according to a probable cause form released Monday. 
 
 But Ivanov instead brought the gun with him to a party that his ex-girlfriend was attending in Mukilteo, a Seattle suburb, investigators say. 
 
 Mukilteo shooting suspect Allen Ivanov made a brief first court appearance August 1, in Snohomish County. A judge ordered Ivanov be held without bail and that he have no contact with the victims' families. KING 5 
 
 In an interview with detectives, the document reads, Ivanov said he hoped to get back together with the girl, identified as A.B. 
 
 But after seeing her with another man at the party, he returned to his car, fetched the rifle, read the instructions and loaded its magazine. He then brought it with him to the party, the document says. 
 
 As Ivanov crept around the outside of the house, a male party goer discovered him, it states. 
 
 "The male said, 'No, no, no,'" the document says. "Ivanov stated that he was 'scared,' he flipped the [gun's] selector switch to fire and shot the male." 
 
 The document adds: "He stated that at that point it was too late to turn back, and once had pulled the trigger his adrenaline kicked in." 
 
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 He found A.B. and shot her twice, killing her, then gunned down another man running toward the party, the document says. From the master bedroom balcony, he fired at two more people in the driveway, then climbed to the roof and discovered that he'd emptied his rifle. 
 
 "Ivanov stated that once the magazine was empty, he returned to his car and drove away," the document says. 
 
 Ivanov, who is being held without bail at the Snohomish County Jail, was charged with two counts of first-degree murder and one count of first-degree aggravated murder. It wasn't immediately clear if he had a lawyer. ||||| Allen Christopher Ivanov told detectives he viewed the AR-15 “as a symbol of power,” according to an affidavit of probable cause. 
 
 EVERETT — After spotting his ex-girlfriend with another guy through the window of a Mukilteo house where a party was under way, Allen Christopher Ivanov returned to his car Friday night to study the owner’s manual for his new AR-15 semi-automatic rifle, police wrote in court documents. 
 
 Two hours apparently passed before Ivanov walked back to the home around 12:07 a.m., Saturday, opened fire and killed three young people, including his ex, and wounded a fourth, according to the affidavit of probable cause outlining the police case against the 19-year-old. 
 
 Like Ivanov, all of the victims were recent graduates of Kamiak High School. 
 
 On Monday, Snohomish County District Court Judge Anthony Howard affirmed a finding of probable cause to hold Ivanov on investigation of one count of aggravated first-degree-murder domestic violence, two counts of first-degree murder and one count of attempted first-degree murder. On Sunday, a court commissioner had also found probable cause to hold Ivanov on the same allegations. 
 
 Howard ordered Ivanov — who appeared via video feed from the Snohomish County Jail — to be held without bail. 
 
 Prosecutors are expected to formally charge Ivanov on Tuesday or Wednesday, Deputy Prosecutor Adam Cornell said. 
 
 Killed were Ivanov’s ex-girlfriend, Anna Bui, Jake Long and Jordan Ebner, all 19. Will Kramer, 18, was wounded and was in serious condition Monday in the intensive-care unit at Harborview Medical Center, a hospital spokesman said. 
 
 Also Monday, a vigil was held for Bui at the University of Washington’s Bothell campus, where she and Ivanov were students. Recently returned from a monthlong trip to Europe, Bui was remembered as a “bright light” who was considering a career in medicine. 
 
 The mass shooting has rocked a tight-knit group of friends who attended Mukilteo’s Kamiak High School. 
 
 Sultan Akbar, 18, had classes with Ivanov and the victims. He wasn’t at the party where the shootings happened, but showed up at court with three friends Monday to express support for the victims’ families. 
 
 “I just feel shook up,” Akbar said. “I’m shocked … those guys aren’t here anymore.” 
 
 He was friends with Ivanov, who he said seemed to have an explosive temper, once threatening to get Akbar kicked out of school after Akbar reported to a teacher that Ivanov had copied his work. 
 
 “He was always wanting to be in control of the situation” and at times displayed “illogical anger,” Akbar said. 
 
 Seattle defense attorneys Tim Leary and Zach Wagnild were retained by Ivanov’s parents over the weekend and said the couple are devastated for the victims’ families as well as their own. Ivanov’s mother told them Bui “was essentially like a daughter to them,” Wagnild said. 
 
 Leary said he was troubled that Ivanov was able to buy an assault-style rifle but was too young to buy a six-pack of beer. He underscored the police contention that Ivanov read the weapon’s instruction manual just before the shooting. 
 
 “I think it speaks volumes to his youth and inexperience and highlights the lethality of the weapon involved,” Leary said. 
 
 Mukilteo police say Ivanov told detectives he broke up with Bui two months ago but then decided he wanted her back, according to the affidavit. He told police he began spending time with Bui last week. 
 
 After his arrest, “Ivanov stated that everything that went on tonight was about a girl,” police wrote in the affidavit. 
 
 Ivanov became jealous after he said he saw photos of Bui on Snapchat with other young men — evidence “she was getting on with her life without him,” the document says. He told police he realized she was his “dream girl,” “and wanted to get back together,” the affidavit says. 
 
 Ivanov said he became angry when he heard from others that Bui “was seeing other guys while the two of them were talking and that made him angry,” police wrote. 
 
 The affidavit says Ivanov claimed he purchased the Ruger AR-15 rifle about a week ago, intent on using it for target practice. He signed up for a firearms-safety class, which was to begin early this month. 
 
 He told police he viewed “the rifle as a symbol of power,” the affidavit said. 
 
 On Friday night, Ivanov left work early because he “wasn’t feeling well,” then went to the Cabela’s store in Marysville to buy a second magazine for the rifle because he had been told he would need it for the firearms class, the affidavit says. 
 
 Ivanov told police he arrived at the party in the 10000 block of 64th Place West at 10 p.m. Friday but parked across the street and watched the house, the affidavit says. He crept up toward the house, looked inside and saw Bui “with another male and got angry,” it says. 
 
 Ivanov then returned to his car, where he read the owner’s manual for the rifle, loaded the magazine and inserted it into the AR-15, the affidavit says. 
 
 Around midnight, he crept to the back of the house, hiding “along the west wall near the living room windows,” it says. He was discovered by a male partygoer, who said, “No, no, no,” before Ivanov opened fire, shooting the male, according to the affidavit. 
 
 Ivanov told police “it was too late to turn back, and once he had pulled the trigger, his adrenaline kicked in.” He entered the house through a side door, found Bui and shot her twice, it says. He continued through the house, then shot another male “running toward the house,” police wrote. 
 
 Ivanov went upstairs and onto the balcony off the master bedroom and fired at two more males in the driveway, police wrote. “He then went up on the roof and realized his magazine was empty,” so returned to his car and drove away. He was arrested about 90 minutes later on Interstate 5 near Chehalis. 
 
 As part of the investigation into the killings, a detective spoke by phone with a person described as a “witness from Kentucky,” who said that two or three days earlier, Ivanov had sent him text messages “regarding committing a mass shooting,” the affidavit says. 
 
 Detectives say Ivanov’s recent social-media posts suggest he “was considering the murders … he later committed.” 
 
 Vicki Bratvold, whose teenage son hosted the house party where the shootings occurred, texted a Seattle Times reporter Monday, writing “there are no words to express our sorrow.” 
 
 “We have always tried to make our house a loving, safe, happy place that the kids could always come. Our hearts are broken for the parents of Jake, Anna, and Jordan. We are praying for Will’s recovery,” she wrote. ||||| EVERETT, Wash. -- Allen Ivanov, the 19-year-old accused in the mass shooting in Mukilteo, said that it was about his "dream girl," court documents say. 
 
 The documents, written by Mukilteo police Detective John Ernst, say Ivanov crept outside the home in the Chennault Beach neighborhood with an AR-15 rifle he had bought a week earlier. The rifle was so new that he had to read its instruction manual to operate it as he sat in his car outside the home where a party was going on. 
 
 As he was hiding outside the home, a male who was at the party discovered him, Ivanov told police. "No, no," the party goer said. 
 
 He told police he was scared and opened fire. "He stated at that point that it was too late to turn back, and once he had pulled the trigger his adrenaline kicked in," Ernst wrote. 
 
 Ivanov went into the house and found his former girlfriend, Anna Bui, and shot her twice, court documents say. 
 
 He saw a male running toward the house and shot him. He went to a balcony off the master bedroom and shot two more males, court documents say. Ivanov went to the roof, but realized that he was out of ammunition. 
 
 Ivanov returned to his car. 
 
 He had another magazine in his car. He had bought it hours earlier after he left his job at the Apple Store at Alderwood Mall. He said he was sick. 
 
 Ivanov said he was loading the magazine in the call and intended to go back into the party and use the AR-15 rifle more. Instead, he drove away. 
 
 In addition to Bui, Jordan Ebner, and Jake Long were also killed. All were 19. A fourth shooting victim, identified by friends as Will Kramer, is at Harborview Medical Center. 
 
 His lawyers expected charges to be Tuesday and say it could be a capital case in which the death penalty could be a punishment option. At a brief court hearing Monday afternoon, he was ordered to be held without bail and to have no contact with the families of the victims. 
 
 The documents portray a distraught Ivanov who was jealous that Bui had moved on with her life and had begun dating other men. 
 
 Ivanov, questioned by police after he had been arrested in Chehalis on Saturday morning, told investigators that he had broken up with Bui two months earlier, but realized it had been a mistake. He wanted to resume his relationship with her. 
 
 She was the first girl he had kissed, he told police. 
 
 He told police that he bought the rifle the week before for target practice and intended to take gun-safety classes. He told police that he saw the gun "as a symbol of power." 
 
 
 
 "He was a nice guy when I knew him. Nice guy, funny guy. Hyper guy. He got excited, like happy," said Sultan Akbar, a high school friend who last spoke to Ivanov on graduation day in 2015. "On some situations, he did get extremely, profusely angry." 
 
 "It’s just shocking, shocking that he did it and they’re not here anymore," Akbar added. 
 
 Police report that someone from Kentucky told officers that Ivanov had sent him text messages about committing a mass shooting. 
 
 Ivanov's attorneys told KOMO News' Jennifer Sullivan on Monday that Ivanov's family is grief-stricken. He is their only child, and they considered Bui a daughter. 
 
 
 
 Ivanov is "very quiet .. he's having some trouble right now," said one of the lawyers, Zachary Wagnild. 
 
 “They obviously didn’t see this coming and are grieving along with many others in this community over what happened,” said Tim Leary, who is also representing Ivanov. 
 
 
 
 Ivanov, who is being held for investigation of three counts of first degree murder, including one count of aggravated first degree murder, and a fourth count of attempted murder made his first court appearance by video link Monday from the Snohomish County Jail. Prosecutors asked Ivanov be held without bail, and the judge agreed. Ivanov is also barred from having contact with any victims or their families. 
 
 On Monday KOMO News obtained a note that Ivanov's former attorney says was written by the suspect and given to him by Ivanov's mother. It contains messages to family and friends, including several that mention "the next life." 
 
 
 
 Prosecutors have until Wednesday to file formal charges and Ivanov's formal arraignment has not yet been scheduled.
– The teenager accused of killing three people at a house party near Seattle bought his AR-15-style rifle so recently he had to study the instruction manual before the rampage, police say. According to court documents, 19-year-old Allen Ivanov has told police that he bought the Ruger firearm just a week ago and carried out the shooting because he was angry that the "dream girl" he split up with two months ago didn't want to get back together with him, NBC News reports. Investigators say Ivanov has told them that on Friday night, he bought another magazine for the gun after leaving his job at an Apple Store early. He drove to the party in the suburb of Mukilteo around 10pm and looked through a window. After spotting his ex with another man, he returned to the car to study the rifle's instructions. Around midnight, he allegedly returned to the party and opened fire. Cops say Ivanov killed his ex-girlfriend, Anna Bui, as well as partygoers Jake Long and Jordan Ebner, all 19 years old. An 18-year-old victim was seriously injured. Ivanov, who fled after the shooting and was arrested more than 100 miles away, is being held without bail on charges including first-degree murder, KOMO reports. Investigators say the teen's recent posts on social media suggest the murders were planned. Tim Leary, a lawyer hired by his parents, tells the Seattle Times it worries him that Ivanov could buy the AR-15 when he is too young to buy beer. The fact that he had to read the manual "speaks volumes to his youth and inexperience and highlights the lethality of the weapon involved," he says. (The family of the AR-15's inventor says he'd be "sickened" by his gun's use.)