[Letitring]

So what is the jerk saying to Moose? Honey, I'm home? Oh good grief, I can't believe this. How horrible, news knows nothing about condition of victim. I came here to see if anyone knows. BTW, good morning. :(

[Catspaw]

The shooter, IMHO, seems to be keying off Moose. And this is his response to Moose, an "in your face" gesture. We're not dealing with a stable person, after all, because very few stable people decide to become serial killers.