Police say he was shot with a stun gun but fled into the John Heinz Wildlife Refuge, where he was arrested after a struggle. Police say he had several warrants for drug offenses.
Jackson was taken to Crozier Chester Medical Center, where he later died.
Police say the circumstances of his death are under investigation. A hospital spokesman would not comment beyond Jackson's time of death being 4:30 a.m. Sunday.
An autopsy is scheduled for Monday.
Information from: Delaware County Daily Times, http://www.delcotimes.com