ICE agents nabbed a murderous illegal migrant and MS-13 gangbanger during a crafty traffic-stop sting in upstate New York last week, authorities said.
Federal immigration agents got a tip on the whereabouts of fugitive accused killer and drug trafficker Alejandro Perla Cruz, 37, of El Salvador on April 7 and set up a trap to nab him, officials said.
Cruz had been wanted for years, they said…