BELMONT - The family of 19-year-old Jonathan Jennings say they've been left with pain, anger, and a lot of questions as police investigate his death.

Officials say he died at St. Barnabas Hospital Thursday after having an apparent seizure while in custody.

Police say they were searching Jennings' home for drugs with a warrant.

Jennings' family say they do not believe the story because Jennings has never had a seizure in the past.

Police are waiting on the medical examiner to determine Jennings' official cause of death.