The Three Homicides #98

It is a slow day in homicide which is never bad. Inspector Strong has a phone call and sends Detective Smith and Detective Rage to a shooting in north Seattle. It appears a gunman walked into an eater and shot a fellow at a table and walked away.
While there Detective Smith is pulled off to a shooting in the Central District leaving Detective Rage as the lead detective.
Inspector Strong receives a third call in his office about another shooting in China Town. He is all alone and goes to this one himself.
Much later in the day they come back to their office, writes a draft summary of their case and goes home.

The next day a review of the cases shows. Rage’s case is where a single gun man shoots a man at a table with his date. Detective Smith’s case is where a butcher is shot by a single man behind his counter with customers waiting in line. Inspector Strong’s case is where a clerk in a busy store asked if he could help a customer. They pull out a gun, shoot him, and walks out the store.
The Inspector asks, “Is there anything in common in these cases? I noticed that each one was shot twice and once in the head when on the floor. A brief look says they, while they seem to have nothing in common they must. Let’s find their common points of contact.”
Corner George brings the results in person upstairs, “Each victim was shot by the same weapon twice. The head shot was a different weapon. I cannot explain that.”

Almost a week later the team is not much further ahead. All close to the shootings said the three reports were very quick bang, bang, bang. There was no delay in the third shot but no one saw a second gun at any time. There were people almost within arm distance at each shooting. Second, the team can find no common points of contact with the three victims.
Were these three random shooting, all by the same person? Distance and timing says No. The ballistic report says same weapon same shooter.
Can Ted at the FBI shine any light on the matter?

Must the team consider three random shootings or one shooting and two other shootings to misdirect the police. If so, which one was the intended and how do you decide. Another possibility is that two were intended and one was the misdirection.
Somehow the Inspector must sort this all out. Will it take another option no one has considered to solve the case?