It's Unconstitutional for the Police to Kill People

[Minimalist]

After watching the footage released by the widow of the deceased, what does she mean by this:

Rakeyia Scott tells her husband to get out of his white pickup truck and repeatedly yells, “Keith, don’t you do it! Don’t you do it, Keith!”

She tells her husband to get out of the car, and in the next breath tells him "not to do it." Can someone explain the "don't you do it"? Don't do what exactly, get out of the car, when she ordered him to? I am a bit confused.

I think "don't you do it" was addressed at the cops.  And of course they did it.