(NEWSER) – Revelations from Dzhokhar Tsarnaev have dribbled out over the last three days, but that may be about to change. Right after hearing his Miranda rights read, he stopped talking, officials tell the AP. The silence came sixteen hours after law enforcement began interrogating the Boston suspect; during that period, he said his brother had just recently convinced him to join in the bomb plot. Cooperating with officials, however, could be Tsarnaev's best hope of avoiding the death penalty, Bloomberg notes. Another option: Show that his brother "brainwashed" him.