"authorities have not identified a suspect or determined a motive."
Internal affairs clearly isn't a thing in the US. Or, if it is, it's a thing that doesn't work, coz when the witness of somebody getting murdered by a cop gets murdered in suspicious circumstances then it's not all that hard to identify a motive.
https://www.theguardian.com/us-news/2019/oct/06/witness-in-a...
"authorities have not identified a suspect or determined a motive."
Internal affairs clearly isn't a thing in the US. Or, if it is, it's a thing that doesn't work, coz when the witness of somebody getting murdered by a cop gets murdered in suspicious circumstances then it's not all that hard to identify a motive.