Police were responding to a shooting of an armed man near the nearby BART station . Police tried Tasering the man twice , but were unable to subdue him . The man turned on them with a knife , and police returned fire . Therefore , a thorough investigation of the circumstances surrounding this death has begun . '' The shooting is under investigation .
Police were responding to a shooting of an armed man near the nearby BART station . Police tried Tasering the man twice , but were unable to subdue him . The man turned on them with a knife , and police returned fire . The shooting is under investigation .