The Gun Report: January 3, 2014 Mass shootings have tripled in recent years, from five a year between 2000 and 2008 to 16 a year from 2009 to 2012, according to a new study obtained by Yahoo! News yesterday. The authors, who are from the Advanced Law Enforcement Rapid Response Training Center at Texas State University, define mass shootings as incidents where a gunman opens fire in a public place with the motivation of killing many. The report, which is set for release in an F.B.I. bulletin next week, also sheds some light on who is committing these shootings. Among the findings: 94 percent of the gunmen are men. The youngest was 13 and the oldest was 88. Shootings most often take place at businesses (40 percent), followed by schools (29 percent), and outdoors (19 percent). Despite the rapid police response time, nearly half the active shootings are over before officers arrive. The shootings claim, on average, two lives. In response to the increased frequency of such events, the F.B.I. is changing protocol. Previously, police officers were instructed to wait for a SWAT team before apprehending active shooters. Now, the F.B.I. is instructing police how to respond themselves. A man was killed and two people were severely injured in two shootings in east Baltimore, Md., during a snowstorm Thursday night. One of the victims was shot in the head in a car in the city's Belair-Edison neighborhood at around 6 p.m.; he is in critical condition. A few hours later, two men were shot in the head, one of them fatally. Homicide detectives are investigating both scenes. Tyrell Alford, 16, was shot in the chest and killed in Indianapolis, Ind., early Thursday. Police found him lying in the street. He had reportedly been talking with his sister when he was approached by two men, who opened fire after a conversation. A 16-year-old boy was shot in the leg and wounded at a McDonald's in Surprise, Ariz., Thursday evening. Detectives believe the shooting may have been a drive-by. ABC15.com A 17-year-old boy was shot and wounded in the Gentilly section of New Orleans, La., Thursday night. He was the third person shot in New Orleans last night: Another 17-year-old was shot in the back in eastern New Orleans at about 6:45 p.m., and a 20-year-old man was shot in the back in the Algiers neighborhood. Anyone with information is urged to call police. Nola.com A man in his 30s was shot and wounded following a fight at an apartment complex in Orlando, Fla., Thursday morning. The suspect possibly got away in a car. MyNews13.com Raouf Kelada, 58, shot himself in the head in an apparent suicide at Oak Ridge Gun Range in Orange County, Fla., Thursday afternoon. Eight people were on the shooting range when they noticed the victim had fallen to the ground. In April, Damon Bell, 40, fatally shot himself in the head at the same range. Orlando Sentinel A man fatally shot himself at the Vista Bridge in Portland, Ore., Thursday afternoon. The death occurred on the south end of what's known as "The Suicide Bridge." The city installed 9-foot barriers last summer to prevent people from jumping. Albany Democrat-Herald Raymond Quattlebaum, 52, was shot and killed in his home in southeast Washington, D.C., Wednesday night. Investigators believe D'Juan Renay Hunter, 38, shot the victim during a confrontation while Hunter was visiting family. He was arrested Thursday morning. An 18-year-old man was shot and critically wounded while opening the front door of his home in east central Fresno, Calif., Thursday night. Police said the victim is a gang member. His family was in the home at the time and ran out the back door. Authorities are still searching for the shooter. A man shot in the backyard of a home in southeast Fresno Wednesday morning has died. His 33-year-old son was also wounded in the shooting. Police believe both men were involved with gangs. Police have a significant lead and expect an arrest soon. The Fresno Bee Peggy Gilliland, 73, was shot in the leg while sitting in her home in Gadsden, La., late Tuesday. Police are not saying if the shooting was related to celebratory gunfire. Kendrick Tolbert, 28, was shot and killed following an argument over a cigarette in a home in Natchez, Miss., Thursday morning. The victim was shot in the shoulder and the bullet exited his chest. A warrant was issued for McKinley Douglas Brady, 34. Natchez Democrat Police say Keith Martin, 35, was shot to death by a U.S. Border Patrol agent who believed he was having an affair with his wife in Hondo, Tex., Thursday morning. Adam Garibay allegedly bound his wife with duct tape and handcuffed her in their Corpus Christi home before forcing her to reveal the name of the man she was seeing. He then drove to the victim's home and fatally shot him. He was arrested after leading deputies on a high-speed chase. Star Tribune A man was shot and seriously injured in Oklahoma City, Okla., Thursday afternoon. It isn't immediately clear what led to the shooting. Police are searching for two men and a woman. NewsOK A 29-year-old man was shot twice in the chest and critically injured in his home in Huntington Beach, Calif., early Thursday. A man staying at the home said two masked men walked through the unlocked front door. They said, "Police, don't move," and shot the homeowner. No items were taken during the incident. During the investigation, detectives seized a quantity of drugs and an unspecified amount money from the residence. A man was shot in the hand in Detroit, Mich., Thursday afternoon, and police responding to the scene found three children who were alone in a home with no food. Officers said their mother left so she could take her boyfriend to the hospital. The woman's two teenage sons allegedly got into an argument with her boyfriend over who was more important to the family when one of the teens allegedly shot him. The mother was taken into custody and the search continues for her teenage sons. Tamila Wooley, 34, was found dead in her home in a gated community in Walker, La., Thursday, four days after she was shot to death. Her son, Eddie Robert Island, 17, was arrested. Police said he told his 2-year-old and 11-year-old siblings, who also live at the home, that their mother was sleeping while he drove her Lexus around town, returning to make sure they were fed. The Advocate A 25-year-old woman was shot and killed while in a vehicle stopped at a red light in Buffalo, N.Y., early Wednesday. Police believe the shooting was targeted. CTPost.com A 36-year-old woman was found shot and critically wounded in a vacant lot in Columbia, Ga., Wednesday morning. Her cries for help led to her discovery. "That makes me scared, because I've got people around here," said Moet Lee, who works near the scene. If they do it to [her], they'll do it to them. Mercedes Morris, 21, was shot to death in a car in Huntsville, Ala., Wednesday night. She was waiting outside a house when several people opened fire. Her boyfriend was in the house but uninjured. The shooting may have been sparked by a drug deal gone wrong early that morning. AL.com A woman told police she was shot in the leg in an alley in Crestview, Fla., Thursday night. The victim gave only vague details of the incident. No suspect information is available. NFWDailyNews.com A 52-year-old woman shot in Joppa, Md., Tuesday night died early Wednesday. The victim was found on her living room floor suffering from at least one gunshot wound. CBS Baltimore Serena Hansken-Vierimaa, 41, was found shot to death in her Springfield, Va., home Thursday evening. Aaron Vierimaa, 41, who also lives in the home, was charged with obstruction of justice. Kingstowne-RoseHill Patch Two people were shot during a home invasion in Davie, Fla., Thursday night. It was unclear whether the wounded were the residents or the robbers. Jose Paulino, 25, and Francis Rodriguez, 22, were shot and critically wounded in Providence, R.I., early Wednesday. A man was shot multiple times in the Echo Park area of Los Angeles, Calif., Thursday afternoon. The incident took place a day after a man was shot less than a mile away in what may have been a gang-related shooting. It's not clear whether the two shootings are connected. No suspects have been apprehended. The Eastsider LA A man is clinging to life after he was shot in the head and neck in the East New York section of Brooklyn, N.Y., Thursday morning. If the man dies of his injuries, he will be the third person to be shot and killed in the city so far this year. A man and a woman were shot and wounded in a car in Richmond, Va., Thursday evening. Detectives received reports of a black Charger leaving the scene. NBC12.com According to Slate's gun-death tracker, an estimated 12,039 people have died as a result of gun violence in America since the Newtown massacre on December 14, 2012.