What is sufficient evidence of premeditation and deliberation to convict a defendant of first degree murder for shooting a man in the head with a crossbow?

supported findings that attempted murder was premeditated and deliberate, where defendant "fired two shots into [victim's] apparently occupied bedroom, after arming himself in response to his anger" over victim's earlier failure to disclose defendant's girlfriend's location]; People v. Poindexter (2006) 144 Cal.App.4th 572, 575, 586-588 (Poindexter) [sufficient evidence of premeditation and deliberation supported first degree murder conviction, rendering harmless any error in instructing on lying-in-wait theory, where defendant told victim to stay where he was, returned with shotgun within one minute, and quickly shot victim three times after exchanging brief remarks].)