TX is very police friendly and the Dallas shooting was far more clear cut. This victim appears to have been armed and the police were responding to a call. Amber Guyger was drunk, trespassing, and off duty. Being on duty changes everything.
Does Texas have a depraved heart murder statute for police? If so this will likely be a no bill.
Regarding the case itself I think this is manslaughter 1 for sure, maybe murder 3, but again being on duty complicated things immensely for any prosecution.