According to police, Sanyah Cheatham was found unconscious inside a cell at a stationhouse on Longwood Avenue just before 1 a.m. Saturday. She was pronounced dead a short time later at Lincoln Hospital.
But just hours before her arrest, Cheatham’s mother said her daughter was all smiles at a family July Fourth cookout in Crotona Park.
“She was happy and I was happy to see her,” said Thomasina Cheatham…