A teenager stabbed at a park near Cesar Chavez High School last week has died.

Family members tell us that Lavon Moore died Wednesday night.

And just in on Thursday afternoon, police have released surveillance photos in the case.

The stabbing is now being investigated as a murder and the gang unit is assisting in the investigation.

On April 19, 2016, officers responded to Cesar Chavez Park reference a report of a stabbing.

When officers arrived at the scene, they discovered one male victim near the perimeter fence between Cesar Chavez High School and the park.

This victim had sustained at least one stab wound and was transported in critical condition to a nearby hospital.

Additionally, a resource officer assigned to the school found a second victim, a 17-year-old, near the football field. that victim had sustained several cuts, but the injuries were not life-threatening.

[READ MORE: 2 students at Cesar Chavez HS stabbed near school]

Witnesses told investigators that the two victims were being chased by subjects driving a newer white Tahoe SUV.

Video obtained from the library shows the victims running to the library from the area of the park near the lake.

A black male subject is seen chasing the victims.

The video also shows the white Tahoe pulling into the lot. Two Hispanic or black females can be seen exiting, then joining in the chase. One of the females is captured on the video surveillance.

The victim flees out the back and the suspects are seen getting back into the Tahoe and driving off. The third female is not pictured.

Police say the victims indicated that the altercation concerned money.

“We think that this was probably targeted,” said Phoenix police Sgt. Trent Crump.

Police presence is being stepped up at the high school.

"At Cesar Chavez High School, tensions are high,” says Crump.

Following the incident, the Phoenix Union school district released the following statement:

"Two of our Cesar Chavez students were injured in a stabbing at Cesar Chavez Park at approximately 2 p.m. They were transported to the hospital. Police are looking for two suspects (African American male and female) driving a 2015 or 2016 white Chevy Tahoe. The school went into a Shelter in Place as a precaution, while police responded and secured the area. The police advised us at 2:45 p.m. that it was safe to release students from school. We advised our students who walk home to avoid Cesar Chavez Park. Our thoughts and prayers are with the two students injured in this incident."

Police say they are looking at several investigative leads, and hope the newly released photos will help them find the suspects.

“We don’t have a motive," says Crump. "Those who are involved in this are lacking cooperation with our investigators.”

Moore's loved ones created a GoFundMe page to help with the funeral expenses. If you would like to help, click here.

Copyright 2016 KPHO/KTVK (KPHO Broadcasting Corporation). All rights reserved)

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