Cops arrested a man Tuesday accused of fatally stabbing a teenager and slashing two others during a dispute on Staten Island Monday, authorities said.

Anthony Ward, 22, allegedly stabbed 18-year-old Damian Yordan to death and slashed another 17-year-old boy and a 22-year-old man at the intersection of Markham Lane and Broadway at 10:50 p.m. on Monday, police said.