PHOENIX -- Authorities said a man remained in custody after being arrested on suspicion of stabbing a woman in the back at a Phoenix-area drug store.
Police said after the man stabbed the woman, he continued wandering through the store. They said an armed off-duty federal agent who was in the store during the Friday attack subdued the suspect.
Court records indicated the man told authorities he had no regard for human life. Investigators said he did not know the woman, who survived the attack.