These men were long standing seasoned officers.
Whether there was sabotage or a mis-understanding of excercise - they apparently died in line of duty.
(a Columbo investigation would check into that - insurance fraud by family memebers)
(a new Columbo would check the Race race - if these were DEI killings to replace whites with anti-white loyals. the jobs are worth quite a bit of money actually - and confirmed killings of white teachers in DC so a black teacher could take the place - already a notch on the rope counted long past and many times)