

Pretti’s pistol is a Sig P230
Which has (allegedly) issues with what appears to be called “uncommanded” discharge
That is, a discharge when being handled otherwise normally, and therefore neither accidental nor negligent.
It is possible, though I would see this as NO EXCUSE, that Pretti’s gun discharged and the ice agent fired (wrongly) in reaction to that noise.
Some close analysis of the frame-by-frame appear to clearly show the slide pushed back, while in the same frame seeming to show gray jacket with four fingers around the grip and none inside the trigger guard.
HOWEVER I am not a video expert
This (and every killing which involved an ice/cbp operation) deserved to be thoroughly and impartially investigated

Bernie + (anyone else, but preferably AOC) would have won against Trump three (3) times.