It's possible. After Sam shot him with the sniper, that was it. No groans, no nothing. Blood was on Ed's face. And when Luka went to his house to take the cat, it seemed that he would not be returning home. At the beginning of the episode, he was also burning papers and job information. So, it is most likely he did die.Yes, he did die. There's a scene where you see him being brought out in a bodybag.