Rep. McCaul: Austin Bomber's Roommate a 'Person of Interest'

One of Austin bomber Mark Anthony Conditt's roommates is being considered as a "person of interest" in connection with the investigation, House Homeland Security Chairman Michael McCaul said Monday.

"If you have knowledge of someone doing something like this, making bombs, and bombing the community and terrorizing the community, you have an obligation, a duty to report that," the Texas Republican, a former federal prosecutor, told Fox News' "America's Newsroom."

"If not, you have knowledge and you're complicit with the conspiracy," McCaul added. "When we talk about ongoing investigation, even though the operation center is wound down at this point, what is continuing at this point is the questioning of the roommate."

The roommate, who is in his 20s and has not been identified, is still being questioned by police as a "person of interest," McCaul said

"He did construct these bombs in the home, we know that much, we know they had to bring in robot to dismantle and take out bomb making materials," McCaul said of Conditt. "The question is, did the roommate know he was making these bombs at the time for the last month when all these bombings were taking place?"

McCaul also gave some details about a 25-minute confession Conditt made before he blew himself up last week as authorities were coming for him, saying the 23-year-old called himself a "psychopath."

"Even more chilling at the end, he says that 'maybe I should just blow myself up in a McDonald's and end the whole thing,'" said McCaul. "That's where he was headed," he said.

Interim Austin Police Chief Brian Manley said Saturday that his department would withhold the recording from the public while the investigation continues, reports Fox News. He also said police have interviewed both of Conditt's roommates, and more people will be questioned.

• ABC News: Serial Bomber Alias 'Kelly Killmore' Aided Manhunt
• Report: Reddit User Makes Claims to Austin Bombings