It is impossible to tell from the snippets listed in the Homicide Report what actually happened in each of these cases, although it is likely that litigation is underway in many cases so a more complete picture may ultimately be revealed.
Many of such deadly force police shootings may have been justified under civil rights excessive force law, as reasonable under the circumstances. For example, a number of the cases involved shots at officers, hostages, and highly volatile situations such as domestic violence episodes.
But in about a third of the cases, it appears that the victim of the deadly force police shooting was unarmed, at least initially.
In these 12 cases, cops justified the shooting because the suspect allegedly "reached in his waistband" for a gun (even though a gun was never found), or allegedly reached for the officer's gun (which version of events is likely to resolve in favor of the living cop's statement as opposed to that which would be told by the dead victim), or because the suspect used the car he was in as a weapon against the cop.
Hopefully the coming year will see fewer deadly force police shootings of all kinds, as a result of better training in accurate weapon spotting, conflict resolution skills and use of less lethal weaponry. The better qualified an officer is to assess, diffuse and resolve a potentially violent situation without his gun, the better the chance it will end without loss of life.
As a related matter, the less we hear of cops lying on the stand or fabricating evidence or otherwise engaging in deception with the public…the more that public may be amenable to believing an officer when he or she justifies a shooting based on an objectively reasonable belief the suspect was actually reaching in his waistband for a gun, making a play for the cop's service revolver, or backing up his car at him.