News of the fake ID emerged shortly after bullet casings examined at the scene were found to have the handwritten words “deny,” “defend” and “depose.” Police believe this could be a message as the words were written in permanent marker.

The message left on the ammunition echoes the phrase “delay, deny, defend,” which is commonly used by attorneys and insurance industry critics to describe tactics used to avoid paying claims.

It refers to insurers delaying payment, denying a claim and then defending their actions. Health insurers like UnitedHealthcare have become frequent targets of criticism from doctors and patients for complicating access to care.

Several 9mm shell casings were recovered from the scene of killing and a cellphone was found in the alleyway through which the shooter fled.

A water bottle and protein bar wrapper purchased from a nearby Starbucks by the gunman were found in a trash can.