Ask him how he's able to multitask so well.
if u want be safe then just go to ur parents and tell them that u r not sleeping because there some one stalking u and ur friends and ur parents will take care of this problem.
Go to the police
You found your stalker? Who's stalking who here!!!
Camoflage, stay downwind, walk backwards in the snow.
Contact relevant authority.
turn his *** in if that does not work attack him with a paintball gun
Stalk him back?