Slaughter High

A 1986 horror/slasher movie about a teen boy who tried to make friends but couldn't. He was in the science room and something blew up. He got caught in the fire and got all burnt. A couple of teens sent him in there, they didn't even help him, they thought he was dead. Suprisingly he wasn't! Time passes and he sends out an invitation for a high school reunion at their old high school. He even put stuff in their lockers to remind them how much fun they had in high school. He even had beer and food for them but the beer had acid in it and the food was also tampered with. Little did they know this same boy was set out to kill them. When they figure who it was, it was too late.