I agree. I know it was a phone not a gun, but was the phone lit up? How much light was in the backyard he got shot in? Cops don't really have the luxury of time to evaluate in these situations. Had it been a gun, these cops might have died for taking the time to over analyze what he was pointing at them in the dark.
We all know when the cops tell you what to do (especially with guns drawn) it's time to listen. He made a series of terrible choices that led to all this.