The gathering has been dubbed a "rally against police violence" by organizers.
Nearly a year after Willard was killed, the investigation into the fatal shooting is ongoing. Salt Lake County District Attorney Sim Gill determined West Valley City Detective Kevin Salmon and former Detective Shaun Cowley were not justified in using deadly force against Willard, but he has not determined whether the pair will face criminal charges for their actions.
Cowley, who was found to have fired the fatal shot, has since been fired from the force for unrelated reasons, but is appealing that decision. Salmon remains on paid administrative leave pending the outcome of Gill's investigation.
The two officers were members of the now-disbanded Neighborhood Narcotics Unit, which faced intense scrutiny after the shooting and after allegations of mishandling evidence, misconduct and other corruption charges surfaced.
An internal affairs investigation found the officers had improperly taken change from suspects and used it to buy the unit items, like food and water. It also found one officer had used a GPS device without a warrant. The same investigation found the most serious corruption charges were unwarranted.