A man who was holding 10 hostages inside a building in Southern California was shot and killed by the FBI on Wednesday after a standoff that lasted for more than 15 hours, police said.The suspect, who was later identified as an Army veteran and convicted sex offender, was killed in an officer-involved shooting involving Federal Bureau of Investigation personnel, the Bakersfield Police Department said in a statement.The standoff in downtown Bakersfield began Tuesday afternoon when officers responded to a call of a bomb threat at the Chase Bank building. The four-story building also housed local school district offices.Bakersfield Police said the man, identified as 41-year-old Anthony Scott Searles-Harris, barricaded himself inside with several people and multiple explosive devices. Officials said Searles-Harris served in the U.S. Army from 2006 to 2007, but was dishonorably discharged due to going AWOL. The FBI also said he was no stranger to law enforcement. In 2014, he was charged with having sex with a minor and was a registered sex offender.At least five of the hostages were employees of the Kern County Superintendent of Schools and were tied up on the second floor of the building, according to the FBI.The departments crisis negotiation team talked with the suspect by telephone, and eventually two hostages were released Tuesday night, police said. None of the hostages were injured and received medical attention at the scene.Nearby buildings were evacuated, including city hall and the police headquarters, and some roads were temporarily closed, according to officials. Officers established a perimeter around the building and nearby businesses, authorities said.A spokesperson for JPMorgan Chase said its branch is on the ground floor of the building and was empty. The company worked with the authorities during the incident.About a dozen police cars were on scene, along with one tactical vehicle and multiple emergency responders, and FBI agents were on the scene.Jacob Davidson, a livestreamer known as Dad's Gone Live, was a block from the bank at his family's tattoo shop when he started getting calls from his subscribers alerting him to the bomb threat."I went into the bank's parking garage and watched the cops enter the back of the bank. This is the biggest police presence I've ever seen in this town," Davidson said. "Now I'm watching them set up the trauma tents with the green, red and yellow tags, and black tags too, along with a command center about a block away."By Tuesday night, his livestream captured through a window in the building a woman rocking back and forth before crouching further down below the window. Later, two hands could be seen waving.Law enforcement agencies often protectively set up trauma tents which are color-coded to help sort people based on the severity of injuries just in case they become needed during an emergency situation.Bakersfield Mayor Karen Goh said she is closely monitoring the situation."The best way the public can help at this time is by avoiding the area and allowing law enforcement officers, negotiators, and other trained professionals the space and opportunity to safely carry out their duties," she said in a statement. ...read more read less