Boston Marathon bombing suspect Dzhokhar Tsarnaev is conscious and sporadically responding to questions in writing, according to multiple reports.
ABC News reported that authorities have begun asking the 19-year-old suspect about "other cell members" and other, undetonated bombs. Tsarnaev is listed in critical but stable condition at Beth Israel Deaconess Medical Center in Boston, where he has spent the last two days after police captured him late Friday night.
Tsarnaev's capture came at the end of a near 24-hour manhunt. Near the beginning of that manhunt, 26-year-old Tamerlan Tsarnaev, Dzhokhar's brother and the second suspect in the bombings, was killed in a gunfight with police.
Up to this point, Dzhokhar Tsarnaev has been unable to respond to questions because of severe wounds to his neck and throat areas. CBS' "60 Minutes" reported on Sunday that he was being treated for a gunshot wound that went "through the mouth" and exited out of the "back of his neck." According to CBS, officials plan to interrogate Tsarnaev without reading him his Miranda rights, using a public safety exemption.
The Boston Marathon bombing killed three and left approximately 170 people wounded. MIT officer Sean Collier was allegedly killed by both brothers, and a Boston transit cop was severely wounded in a subsequent shootout.
Massachusetts Gov. Deval Patrick said on Sunday that the FBI has described surveillance video to him that clearly places Dzhokhar Tsarnaev at the scene of the attack on Monday.
"It does seem to be pretty clear that this suspect took the backpack off, put it down, did not react when the first explosion went off and then moved away from the backpack in time for the second explosion," Patrick said on NBC's "Meet the Press" Sunday. "It's pretty clear about his involvement and pretty chilling, frankly."