Leroy Junior Medford died in police custody in Reading on 2nd April 2017. The Facebook campaign page has been set up by family members and friends to get answers and justice for Leroy.
An inquest into the death of a man who died an hour after collapsing in police custody will focus on the 15 hours following his arrest, a coroner said.
Leroy Junior Medford, 43, was taken to hospital after being arrested in Reading on 1 April but was discharged the same day.
He was found unresponsive in his cell at about 04:00 BST the next day before being declared dead in hospital an hour later. The inquest will take place on 10 June.