Boston Marathon bombing suspect Dzhokhar Tsarnaev is awake and "responding sporadically in writing to questions...about other cell members and other unexploded bombs, " police sources told ABC on Sunday evening.
Tsarnaev is unable to speak because of the gunshot wound to his neck, and may never be able to speak again. The wound may have been self-inflicted.
Questions will probably focus on the whereabouts of other explosives and weapons, and whether the brothers had accomplices or acted alone. Boston's Mayor Thomas Menino told Fox that all current information points to them acting alone.
Police found other explosives and weapons indicating that the Tsarnaevs were planning another attack, Boston Police commissioner Ed Davis told Fox.
It's not known whether Tsarnaev was read his Miranda rights. Law enforcers have up to 72 hours after Tsarnaev's arrest to file criminal charges. He'll probably be charged today with terrorism, which could lead to the death penalty.
"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," MA Gov. Deval Patrick told Meet the Press
. "It's pretty clear about his involvement and pretty chilling, frankly."
"There is evidence of some frankly kind of normal student behavior in those ensuing days [after the bombing], which when you consider the enormity of what he was responsible for certainly raises a lot of questions in my mind and as I say more to the point in the minds of law enforcement as well," Patrick said.
Via Politico, ABC, and Fox News.