SEATTLE - The suspect in a horrible attack at a University District apartment told police he was high on LSD when he assaulted his girlfriend Sunday afternoon, documents say. 
 
 
 
 Meanwhile, police detectives say they don't know if the woman will survive the attack. She is still undergoing treatment at Harborview Medical Center. 
 
 Officers responded to the scene, a home in the 2200 block of NE 50th Street, shortly after 2 p.m. Sunday after receiving reports of a disturbance there, said Detective Mark Jamieson of the Seattle police. 
 
 When police arrived, they could hear people arguing inside the residence. Officers knocked on the door but there was no answer, so they looked in a window and saw a man strangling a woman, according to police documents. 
 
 Officers forced open the door and pulled the man off the woman. Officers then began performing CPR on the woman, who was unresponsive, until medics arrived from the Seattle Fire Department. The woman was then rushed to Harborview Medical Center with life-threatening injuries. 
 
 According to police reports, the suspect told detectives that he and his girlfriend took LSD. He told police he became paranoid and thought she was plotting against him. He also admitted to punching her in the face and head, then strangling her with his hands, police say. 
 
 A neighbor, who doesn't want to be identified, told KOMO News he called 911 when he heard what sounded like a violent confrontation next door. 
 
 "The guy started pounding the wall and kicking stuff, and then I was like, 'Wow, I better call,' because he was continuously yelling like, 'I'm going to (expletive) kill you!'" 
 
 The suspect, identified in documents as Casey Henderson, 21, was arrested and booked him into the King County Jail for investigation of domestic violence assault, Jamieson said. He is being held on $1 million bail and is scheduled to appear in court on Wednesday. 
 
 Both he and the victim are students at the University of Washington. ||||| Police say the woman, a 22-year-old UW student, was attacked by her boyfriend, 21, who also attends the University of Washington. His bail was set at $1 million. 
 
 A 22-year-old University of Washington student who was severely beaten in her University District apartment Sunday has died, Seattle police said Tuesday. 
 
 Police say the woman was attacked by her boyfriend, 21, who is also a UW student. The case against him will now be investigated as a homicide, police said. 
 
 A judge Monday found probable cause to hold him pending the filing of criminal charges and set bail at $1 million, according to King County prosecutors. Formal charges are expected to be filed Wednesday. 
 
 The Seattle Times generally does not identify suspects until they are charged. 
 
 A neighbor called 911 soon after 2 p.m. Sunday and reported he could hear a male yelling, “You wanna die?” and “I will kill you,” according to the statement of probable cause outlining the police case against the suspect. 
 
 Police forced their way into the apartment, and pulled a man off the woman. She was taken to Harborview Medical Center, where she died. 
 
 Her name has not been released. 
 
 According to police, the man later told detectives he and his girlfriend had taken LSD a day before the attack. Police say the suspect told detectives he became paranoid and believed his girlfriend was plotting against him before he began beating her. ||||| Prosecutor: Dismembered woman killed at home, driven to Seattle John Charlton ordered held in slaying of Ingrid Lyne, Renton mother of 3 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 Photo: GRANT HINDSLEY, SEATTLEPI.COM Image 1 of / 5 Caption Close Image 1 of 5 John Robert Charlton appears in court for the first time after being arrested on probable cause for murder in the second degree of Ingrid Lyne of Renton at the King County Jail Courtroom in Seattle on Tuesday, April 11, 2016. less John Robert Charlton appears in court for the first time after being arrested on probable cause for murder in the second degree of Ingrid Lyne of Renton at the King County Jail Courtroom in Seattle on Tuesday, ... more Photo: GRANT HINDSLEY, SEATTLEPI.COM Image 2 of 5 John Robert Charlton appears in court for the first time after being arrested on probable cause for murder in the second degree of Ingrid Lyne of Renton at the King County Jail Courtroom in Seattle on Tuesday, April 11, 2016. less John Robert Charlton appears in court for the first time after being arrested on probable cause for murder in the second degree of Ingrid Lyne of Renton at the King County Jail Courtroom in Seattle on Tuesday, ... more Photo: GRANT HINDSLEY, SEATTLEPI.COM Image 3 of 5 Ingrid Lyne. Photo from KOMO News Ingrid Lyne. Photo from KOMO News Image 4 of 5 John Charlton. Photo from Montana Department of Corrections John Charlton. Photo from Montana Department of Corrections Image 5 of 5 Seattle Police Chief Kathleen O'Toole announced the details Monday afternoon of an investigation into the human remains found in a Central District recycling bin Saturday. Authorities believe the remains belong to a Renton woman reported missing earlier that day. Police arrested a 37-year-old man Monday morning. less Seattle Police Chief Kathleen O'Toole announced the details Monday afternoon of an investigation into the human remains found in a Central District recycling bin Saturday. Authorities believe the remains belong ... more Photo: Lynsi Burton/seattlepi.com Prosecutor: Dismembered woman killed at home, driven to Seattle 1 / 5 Back to Gallery 
 
 John Robert Charlton, the man suspected of killing and dismembering a Renton mother of three, will remain jailed as prosecutors prepare to charge him in the weekend slaying. 
 
 Detectives arrested Charlton, 37, north of Seattle after identifying him as a suspect in the slaying of Ingrid Lyne. A resident of Seattle’s Central District found Lyne’s remains in a recycling bin on Saturday afternoon hours after the 40-year-old had been reported missing. 
 
 Charlton was ordered held on $2 million bail following a preliminary hearing Tuesday. He is suspected of second-degree murder. 
 
 Lyne, a nurse, is believed to have attended a Mariners game on Friday on a date with Charlton. She wasn’t publicly identified as the slaying victim until Monday, shortly before Charlton’s arrest was announced. 
 
 The King County Medical Examiner confirmed the identity of her remains Wednesday, saying she died of "homicidal violence." The date of her death is unknown. 
 
 The investigation began at 4:19 p.m. Saturday when a Central District resident called police to report what appeared to be human remains in his recycling bin. A head, arm with a hand, lower leg and foot were recovered, court documents state. Police responded to the home, located in the 1600 block of 21st Avenue, and collected the body parts. 
 
 Six hours later, Seattle police learned Lyne had been reported missing that morning to Renton police. Investigators claim to have linked Charlton to her death using cell phone data and evidence obtained through searches. 
 
 At a preliminary hearing Tuesday afternoon, a King County deputy prosecutor said Charlton killed Lyne in her Renton home and then drove her body to Seattle. Detectives found Lyne's vehicle, a 2015 Toyota Highlander, in downtown Seattle late Monday night. 
 
 Charlton has a criminal history in six states, including a theft conviction in Montana from 2010, negligent driving in Washington state in 1998 and a second-degree felony for aggravated robbery in Utah in 2006, according to court records and the Associated Press. He has also been convicted of fourth-degree assault and battery. 
 
 His parents had sought a restraining order against him in 2006, saying he had taken the movie "Hannibal" — about a serial killer — from a shelf and told his mother she should watch it and "beware." 
 
 Charlton was arrested in Lake Stevens early Monday morning and booked into King County jail for investigation of homicide. He remains there pending charges from the King County Prosecutor’s Office. 
 
 Lyne was found to be missing when her ex-husband arrived at her home Saturday morning, according to their plan, to return their kids, ages 12, 10 and 7, court documents say. Her car was not in the driveway and she did not answer her phone. The ex-husband called Lyne's mother, who arrived with a key to the house and walked inside. Lyne was not home, but her purse, phone and tablet were inside, according to probable cause reports. Her mother called police. 
 
 Her mother also found a recurring phone number on Lyne's phone, which Lyne's sister researched on the internet and connected to Charlton's Facebook page. Detectives later verified Charlton's connection to the phone number, reports indicate. 
 
 Lyne's neighbor told detectives she had been dating a man named John and that she knew Lyne was attending Friday's Mariners game with him. 
 
 Lyne's mother texted Charlton, who responded that they went to the Mariners game Friday night but did not spend the night together because she knew she had custody of her daughters Saturday. 
 
 However, he did not respond to texts asking what time he saw Lyne last. 
 
 That afternoon, a man returned home to the Central District from an out-of-state trip to find that his recycling bin was heavier than it should have been. He dumped the contents onto his lawn to find three plastic bags tumbling out, one of them visibly containing a foot, reports indicate. 
 
 Police and the Medical Examiner's Office responded to verify the presence of a few body parts in the bags, including a head. 
 
 When detectives learned about Lyne going missing from Renton, they verified her identity by comparing photos of her with the body parts recovered, court records say. 
 
 Detectives searched Lyne's home about 1 a.m. Sunday to find suspected blood and a nearly empty box of plastic bags matching those found in the Central District recycling bin, according to the probable cause. 
 
 In the bathroom, they found a 15-inch pruning saw near the tub; King County Deputy Prosecutor Jennifer Worley claimed Tuesday that detectives also recovered blood and flesh near the saw. 
 
 After arresting Charlton, he reported he had been dating Lyne for about a month, probable cause reports say. He said they returned home in her vehicle Friday night, though he was so drunk that he couldn't recall the trip home, nor what happened when they got there. 
 
 He then said he ended up back in Seattle, supposedly given a ride there by Lyne, and slept on the sidewalk. Charlton claimed to have spent Saturday and Sunday nights at an ex-girlfriend's home in Lake Stevens. 
 
 Detectives observed bruises on his forehead, and other injuries on his lip, chin, chest and left hand. 
 
 At a vigil held for Lyne Tuesday night near her Renton home, friend Jim Morrell described Lyne as smart with a sharp sense of humor and said she was a great mother and friend. 
 
 "We're all hurting," he said as he encouraged the crowd to support her family and especially three young daughters, in the days, months and years to come. 
 
 Seattlepi.com reporter Levi Pulkkinen and The Associated Press contributed to this report.
– A 21-year-old college student in Seattle allegedly killed his girlfriend after getting high on LSD over the weekend, the Seattle Times reports. According to the Tri-City Herald, police say the suspect, identified as Casey Henderson, and 22-year-old Katy Straalsund took LSD Saturday and walked around the University of Washington, where they were both students. Things apparently took a turn when they returned to Straalsund's nearby apartment. “He did say that they never slept,” a Seattle Police Department detective wrote in the police report. “He states (that) after a while things ‘started to get weird.'" Henderson allegedly later told police he got paranoid and convinced that Straalsund was plotting against him, KOMO News reports. Police say a neighbor called 911 Sunday afternoon after hearing a man yelling "You wanna die?" and "I will kill you." Officers broke into the apartment and reportedly found Henderson strangling Straalsund. Police say he had already attacked her using techniques he learned in tae kwon do before they got there. Straalsund had no pulse when officers arrived and had no brain activity when she got to the hospital, where she later died. Henderson, who appears to have no criminal history, is being held on $1 million bail. He was expected to be charged with homicide Wednesday.