The cause of death for a man who died days after being found unresponsive in his Connecticut jail cell was cardiac arrest caused by drug withdrawal, not an officer’s use of force on him, according to a state investigation’s findings released Friday. Autopsies determined that Joseph Torrice, who was 37, died July 18 of cardiac arrest caused by a withdrawal from opioids and other drugs, the state Office of Inspector General found. Manchester police arrested Torrice on July 8 for allegedly interfering with an officer and on drug offenses. According to the report, Torrice resisted efforts to take him into custody and was ultimately pinned to the ground before being handcuffed. He was diagnosed with a concussion at a hospital.