Set And Run Mass Killer Case

A: I believe that the unknown mass murderer in Arizona was a set-and-run mass killer. I believe this because firstly the offender has already left the scene before the police arrived and is not committing suicide. This is highly unlikely with mass murderers, because usually the want to be known they want people to know who they are and why they have committed the mass murderers. But this kind of offender doesn't have that as one of his goals, in this case the offender stayed anonymous and no one knows who he was and why he did what he did. Also, why I believe that this offender was a set-and-run mass killer is because by looking at his victimology, the victims was all from different backgrounds and it seems like the victim just had the bad luck to be at the wrong place at the wrong time. In this case it is the locations that is the most important one. The location where the offender committed his crimes was in drug and/or convenience stores. In this case the victims is not what is important to the offender, the locations are the important detail like the set-and-run mass killer.
I believe that in this case because of the location the mass murders were planned, the offender´s motive was about something personal against the allergy medication company. After the mass killings the stock in the company crashed and became worthless, which could be the goal for the offender and why he committed all the murders. It is believed that the offender was a previous employee at the company, which could be the reason for why the offender had something personal against the