Authorities gave the Miranda warning on Monday night to the 19-year-old man suspected in the Boston Marathon bombing.
Dzhokhar Tsarnaev, who is in the hospital recovering from two bloody shootouts with police, nodded affirmatively when asked if he understood his rights, according to a federal document released to The New York Times.
Investigators appear to think Tsarnaev and his older brother Tamrlan, who was killed in a Friday shootout, acted on their own in the bombing.
The White House announced Monday that Tsarnaev would not be tried as an enemy combatant.
Tsarnaev was charged Monday with one count of conspiring to use a weapon of mass destruction to harm persons and property and one count of attempting "malicious destruction of property." Tsarnaev could face life in prison or the death penalty if convicted.