YOUNTVILLE, Calif. -- Four people are dead after a man wearing body armor and armed with a rifle stormed into a Napa County veterans home Friday morning, sources confirm.The day-long hostage situation, which started around 10:30 a.m. at the Veterans Home of California-Yountville ended Friday evening with the gunman killing three female hostages. The suspect is also dead.Chief Chris Childs said officers entered the room where the hostages were being held around 6 p.m. He said they were all found dead inside a room in the veterans home.Childs added that a bomb-sniffing dog had alerted on the suspect's car but no bombs were found in the vehicle. He said there is "no threat to public safety."Yountville officials confirm that the three female hostages were employees of the nonprofit organization Pathway Home treatment program, which is housed on the campus of the Veterans Home of California-Yountville.They were identified as 42-years-old Jennifer Golick, 48-years-old Christine Loeber and 29-years-old Jennifer Gonzalez. Golick and Gonzalez were counselors and Loeber was the director of the program.Napa County Sheriff-Coroner's officials identified the gunman as Albert Wong, a 36-year-old Sacramento resident. Department of Defense officials said Wong was a decorated U.S. soldier who served on active duty from May 2010 to August 2013. He spent a year in Afghanistan.The Pathway Home released a statement saying:Law enforcement from the Napa County, the California Highway Patrol and FBI surrounded the facility, which is the largest veterans' residence community in the United States, for more than eight hours.Authorities held their first formal press conference shortly after 2 p.m. and confirmed that a male suspect entered the building. Deputies and the suspect exchanged gun fire earlier in the day, Napa County Sheriff John Robertson said. Robertson confirmed that "many bullets" were fired from both sides.The gunman, he said, was a veteran in the program and was being treated for PTSD. He had been asked to leave the program earlier this week, Dodd said, noting the facility has rules and regulations to stay in the program.Larry Kamer told sister station ABC7 News that his wife and six other women were attending a going away party for a colleague when the suspect broke in with a rifle. The gunman, Kamer said, let four of the women go, including his wife.The state veterans affairs department said the home opened in 1984. It offers residential accommodations with recreational, social and therapeutic activities for independent living, according to the home's website.The grounds also include a 1,200-seat theater, a 9-hole golf course, a baseball stadium, bowling lanes, a swimming pool and a military Base Exchange branch store.