A 23-year-old Bergen County man is in NYPD custody after allegedly fatally shooting his roommate Monday night. Milan Ghimire reportedly fled the scene of his Mahwah apartment, but his cell phone was tracked through Rockland and eventually he was caught in the Bronx on Tuesday, according to Bergen County’s’ prosecutor. Published reports say Ghimire faces murder and weapons charges, among others, in Superior Court in Hackensack for the shooting death of his roommate and co-worker, 56-year-old Phu Tsewang.