Police have arrested a man believed to have stabbed and killed one member of Nicki Minaj's tour crew and wounded another.
After a late night brawl in Philadelphia last month, two of Minaj's crew members were walking a bar employee to her car when they were attacked. De'Von Pickett, 29, was stabbed in his heart and stomach and died; a second crew member is still in the hospital with stab wounds to his back. The alleged attacker, Pierce Boykin, 31, faces numerous charges, including murder and attempted murder.
What will prosecutors need to prove in order to secure a conviction, and does Boykin have any possible defenses?