I feel some compassion for this person that is obviously distraught.  Police performing welfare checks in the past is an indication of a troubled person especially with the man saying things are okay.  I don't know how much losing his mom impacted him, but I'll bet you the loss of his dog was a trigger for his sad behavior.  I don't want anyone to get shot and killed because of this guy and if he ends up getting shot, so be it.  It really sounds like he might be at the end of his life. It would be better if he shot himself.  Although I never tried to shoot anyone, at points in my life I have been similarly distraught but turned my despair inward.  My wonderings makes me think he is very lonely and sees no purpose in his life. Has anyone ever seen the movie "They Shoot Horses, Don't They?"?  Also, the movie "Soylent Green" makes me think of people being is despair and ending their lives.