Editor’s note: This article mentions suicide. If you or someone you know needs help, resources or someone to talk to, you can find it at the National Suicide Prevention Lifeline website or by calling 800-273-8255. People are available to talk 24/7.
(NewsNation) — New video shows the moment when police say a man intentionally blew up his Virginia. home while he was still inside during a standoff with police.
Officers responded to the home of 56-year-old James Yoo on Dec. 4, after reports that he was firing a flare gun from the back of his duplex into a nearby school and park, the Associated Press reported.
Police previously disclosed that Yoo had behaved erratically and frequently contacted the FBI claiming that he was the victim of various schemes, according to AP.
Before the explosion, Yoo reportedly posted on social media sites such as LinkedIn to rant about his neighbors and former coworkers.
Although the investigation revealed signs of paranoia and mental health issues, a specific motive is unknown, AP reported, citing Police Chief Andy Penn.
Investigators say it’s unclear exactly how Yoo ignited the fire and explosion. It may have sparked when gunshots ignited gasoline vapors or by something more direct like matches or a lighter, according to AP.
Police spoke with some neighbors, who said Loo was reclusive. According to them, he covered his windows with black garbage bags and would hang toilet paper from trees outside his home.
Family members say Yoo had a history of mental illness and had been resistant to accepting medical treatment.
During the investigation, one neighbor said large amounts of charcoal, lighter fluid and bleach were dropped off at Yoo’s home a week before the explosion.
Police say they found cans of gasoline, three guns and ammunition at the scene.
Officers had used non-flammable measures such as pepper spray and tear gas to try to force Yoo out of the home, according to AP.
The Associated Press contributed to this story.