A medical examiner found Freddie Gray suffered a “high-energy injury,” most likely caused when the Baltimore police van he was riding in suddenly slowed down, according to an autopsy report obtained by The Baltimore Sun.

The report says Gray’s death could not be ruled an accident and is instead a homicide because officers didn’t follow safety procedures “through acts of omission.”…

A spokesman for the Maryland medical examiner and for the prosecutor’s office declined Tuesday to release the report, but State’s Attorney Marilyn Mosby condemned the leak in a statement.