The 15-year-old boy gunned down a block away from his Harlem home was trailed by two suspects wearing clothing they could easily discard in what prosecutors called an orchestrated hit, officials said Sunday. The teen arrested for the death of Jihad Pack was ordered held without bail Friday while a second suspect - the actual triggerman - remained at large, officials said. The 15-year-old suspect's name is not being released because of his age. Prosecutors from the Manhattan District Attorney's office said the arrested teen stalked Pack with the gunman and hid behind a car as the gunman fired off four rounds from a .9-mm pistol, killing Pack and hitting a 57-year-old innocent bystander around 6:20 p.m. Wednesday, prosecutors said. Pack was shot one door down from the building where he lived in NYCHA's Martin Luther King Jr. Towers. The mortally wounded teen staggered to the walkway outside his building on W. 115th St. near Malcolm X Blvd., where a family friend found him bleeding out on the pavement, his life ebbing away. I took off my shirt to put pressure on the wound. He was saying, Please! Please, I don't want to die!' said the friend, 28, who gave her name as Kadisha. I was the last person he spoke to. His last words were, Kadisha, I don't want to die.' Medics rushed both victims to Mt. Sinai Morningside, where Jihad died. After the incident, the shooter passed off the weapon to the arrested 15-year-old boy as both of them fled in different directions. The accomplice fled north up 5th Ave. and turned onto E 116th St., where he changed his clothes into a thin gray sweatsuit while still wearing the same black mask and shoes and clutching the gun in his waistband. Responding officers caught up to him and recognized the outline of a gun in the teen's waistband, even though he told cops that he was shooting hoops, according to court documents. He was apprehended by cops after a foot pursuit and was charged with murder, attempted murder, and criminal possession of a weapon. Cops recovered the pistol that had a bullet in the chamber and seven in the magazine. The pistol w #nydailynews #crimewatchnewyork