They had him down on the ground and under control, and his gun removed. There was no need to put 10 bullets into him after that.
I can't go back into my viewing history to pull up a source video, but I did see one that mentioned what had happened previously. However, since I didn't watch the video I can't confirm for which side of the argument it was produced.
But what is said to have happened back then did not happen on the day he died. Further, were those ICE agents involved in his death the same ones who were involved in the earlier incident? I would suggest that those associated with the events of his death are not likely to have positively identified him since over that period they no doubt swa and interacted with very many other persons.
This back and forth can only be stopped by a full and impartial investigation of the incident. Unfortunately, in present day USA finding an impartial examiner seems like finding a unicorn horn in a pile of rocking horse manure.