So perhaps this unfortunate affair doesn't have to do with race at all.
A guy gets caught doing something illegal, he tries to escape arrest by the called in police, he struggles with the officers to escape, they finally pin him down, the holding technique used was physically exceeding to cause the man to go into cardiac arrest assisted by the drugs he was on, the suspect is taken to a hospital where he dies.
This could have happened to any person of any racial background .