And to think, there’s a prison cell waiting for him in Gitmo.

BOSTON (AP) — Sixteen hours after investigators began interrogating him, Boston Marathon bombing suspect Dzhokhar Tsarnaev stopped talking after being read his constitutional rights.

Officials briefed on the interrogation say the 19-year-old suspect went silent after a magistrate judge and a representative from the U.S. Attorney’s office gave him his Miranda warning. The officials insisted on anonymity because the briefing was private.

Before being advised of his rights, Tsarnaev told authorities that his 26-year-old brother, Tamerlan, recently had recruited him to be part of the attack that detonated pressure-cooker bombs at the marathon finish line, say two U.S. officials.

The FBI filed a federal criminal complaint against the 19-year-old on Sunday, and federal District Court Judge Marianne Bowler arrived at the hospital where he is being treated to preside over his initial hearing Monday, when she read him his Miranda rights.