Friday the 13th: The Series (1987) : 3x4

Fleeing fraternity boys who plan to gang-rape her, a figure skater is hit by a car and crippled. However, a mysterious old man sells her an antique wheelchair at a garage sale. The wheelchair is one of the cursed items, and allows the girl to use it to kill her victimizers and regain the use of a bit of her body with each death. Micki and Jack are out of town trying to recover an antique, so Johnny must deal with the matter on his own. He initially leaves the girl with the wheelchair out of pity, but she continues to kill. Ultimately, the girl is killed, and Johnny recovers the chair.