Glendale PD seek 3 more persons of interest after deadly mass shooting
Police say they are not suspects
GLENDALE, AZ (AZFamily) — Police are again asking for the public’s help to locate three more persons of interest in connection with Sunday night’s mass shooting outside a Glendale restaurant.
Three people were killed, including a teen, when a shooting broke out in the parking lot of El Camaron Gigante Mariscos & Steakhouse near Grand and Glendale avenues. Five others were wounded.
Three days later, no arrests have been made. On Wednesday, Glendale PD posted an update on social media seeking three persons of interest they believe have “vital information” related to the shooting.

Glendale police posted an update on Thursday announcing that the three individuals had been identified. Now, investigators are looking for three more persons of interest (pictured above). Police stressed that the six persons of interest are not considered suspects.
Investigators said the case is challenging for detectives because of the crowd of hundreds of people, multiple shooters and the realistic possibility that shooters may have died in the gun battle.
The mass shooting happened at an event called “On A Sunday Afternoon,” which was supposed to be a fun, family-friendly concert. But instead, it turned into a tragedy. Twenty-one-year-old Milo Christopher Suniga, 21-year-old Christopher Juaquin Sproule and his brother, 17-year-old Damien Anthony Sproule, were shot and killed.
“Right now, we know for sure there were multiple shooters, but we are uncertain of the exact number,” said Jose Santiago with the Glendale Police Department.
Santiago said officers are combing through about 60 videos connected to the case. “What we are hoping to find is what took place before the fight, during the fight, and after,” he said. “So we can see exactly who was involved during the fight that escalated to a shooting.”
Witnesses recorded all the videos. Detectives will then match up the videos to the statements, shell casings and other evidence to determine who is responsible for the mass shooting. “A lot of it becomes convoluted because people see or think they see something, and when we have video, we can actually compare that video to what people thought they saw and piece it together,” Santiago said.
The investigation might take a while. Santiago said that because of the crowd at the event, there are many people the police need to speak to, including multiple persons of interest.
Anyone with information on the individuals is asked to call the department at 623-930-3000. Anonymous tips can also be provided by calling Silent Witness at 480-WITNESS (480-948-6377) or 480-TESTIGO (480-837-8446) for Spanish speakers.
Glendale police have also set up a portal where witnesses can upload photos and videos, which is linked here.
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