ORLANDO, Fla. (AP) — The former neighborhood watch volunteer who killed Trayvon Martin told his wife to buy bulletproof vests for them and for his attorney, according to jailhouse calls released Monday.

"As uncomfortable as it is, I want you wearing one," George Zimmerman told his wife. Zimmerman was wearing a bulletproof vest when he left jail after posting bond. His attorney, Mark O'Mara, has reported receiving threats.

The calls, released by prosecutors, also detail how Zimmerman instructed his wife to transfer money from bank accounts and could play a crucial role in his second bond hearing next week.