Community members and city leaders are calling for change after the fatal shooting of a teenager in Bellevue, Tennessee, park.

NASHVILLE, Tenn. (WKRN) — A deadly Wednesday night shooting involving teenagers at a Bellevue park has sparked calls for change from the community and city leaders.

Frantic 911 calls shed light on the double shooting that killed 13-year-old Aayden Hayes and injured her 16-year-old sister at Red Caboose Park on Wednesday, May 29.

“There were just gunshots in the park, and there were kids running and screaming from the park,” one person told the operator as she caught her breath.

From witnesses to neighbors and city leaders, this tragedy remained at the forefront of their minds.

“Middle school kids, so it’s just mind-blowing,” Lauren Monroe told News 2 while visiting a growing memorial in the park.

“It's impossible to imagine something in a playground, in a park, involving a gun,” Nashville Mayor Freddie O'Connell said during his regular roundtable discussion.

After officers found Aayden on the parking lot sidewalk with multiple gunshot wounds Wednesday evening, he was rushed to Vanderbilt University Medical Center, where he was pronounced dead. Meanwhile, her sister went to the fire station next to the park, where she received emergency medical treatment and was taken to the hospital, according to authorities.

As the father of a 13-year-old, O'Connell said community members are obligated to do better in the future.

“We continue to refine traditional policing and community safety initiatives to try to ensure Nashvillians are and feel safe,” he said.

City officials will continue to invest in strategies to reduce gun violence while working with first responders, Metro Nashville Public Schools and community partners to continue making decisions, according to O'Connell. based on data that guides their targeted approaches. He hopes that initiatives to expand opportunities for young people to prevent children from becoming involved in cycles of violence will help reduce the problem.

The mayor added that cameras can help, noting that there are 316 in metropolitan parks. Following the shooting, an aerial camera was reportedly installed at Red Caboose Park.

“We have a few things in place besides cameras,” O'Connell said while highlighting the success of city parks through enforcement of codes of conduct; Business hours; and, in some cases, additional fencing to prevent drive-ins after the park closes.

On Friday, May 31, a steady stream of people continued to add to a memorial at Bellevue Park, which now features flowers, balloons, candy and a red cleat.

“I saw the soccer cleats, and when a young athlete leaves, it's always sad because you never know what his potential could be in the future,” Daniel Key said through tears.

The mother of the shooting victims told News 2 that not only did Aayden love candy, but the cleat is one he lost at school last season, offering a glimpse into how his classmates remember of the adolescent. She added that her 16-year-old daughter was going to have surgery at Vanderbilt Friday afternoon.

Authorities say 15-year-old De'Anthony Osasosifo — who matched the description of the shooting suspect provided by witnesses — was found walking on Highway 70, less than a half-mile from the park, and arrested . During an interview at MNPD headquarters, Osasosifo allegedly admitted to firing a gun during a fight between teenagers in the park.

Police told News 2 Friday that Osasosifo was still under medical care, adding that he was being evaluated out of the county, although he was not physically injured. The 15-year-old is expected to be charged with criminal homicide and attempted criminal homicide in juvenile court.