Killjoy 2: Deliverance From Evil (2002)

Genre: Drama | Fantasy | Horror
Tagline: He's Back... For Seconds

Plot: En route to a run-down shelter they are set to renovate as community service, a group of juvenile delinquents and the two chaperones accompanying them run into a minor set-back when their bus breaks down. When trying to find a phone, one of the teens is shot, and the group finds shelter with a voodoo priestess. While trying to use voodoo to save their friend, two of the teens accidentally unleash the evil spirit known as Killjoy.

http://www.imdb.com/title/tt0295369/
http://en.wikipedia.org/wiki/Killjoy_2:_Deliverance_from_Evil