DALLAS – Dallas police have arrested a 19-year-old woman for killing a man during a Facebook Marketplace meeting.

It happened last week just steps from an elementary school and a busy Dallas freeway, with several witnesses nearby.

Police say Ahmad Alkhalaf, a 66-year-old husband and father from Sasche, was killed mid-afternoon at an Oak Cliff gas station near I-35 and South Marsalis Avenue.

The shots rang out last Friday around 3 p.m., just as the nearby Felix G. Botello Elementary School was letting out.

Two Dallas ISD police officers rushed to the Valero and found Alkhalaf shot next to his truck, according to court records. He later died in hospital.

Dallas detectives learned that Alkhalaf was there to sell a black iPhone 15 to someone he had communicated with on Facebook Marketplace.

Photo of Amaya Medrano, Dallas County Jail

Police obtained several surveillance videos from nearby businesses. They say the video showed 19-year-old Amaya Medrano and Alkhalaf having a brief conversation and Medrano running away.

As Alkhalaf chased her, cameras captured Medrano turning and shooting Alkhalaf, police said.

According to an arrest warrant affidavit FOX 4 obtained Thursday, investigators matched Medrano’s distinctive tattoos on her face and neck to her social media accounts.

Just three days after the fatal shooting, police noticed that the same Facebook account communicating with Alkhalaf was selling a black iPhone 15 on Marketplace.

On Wednesday, Dallas police announced that Medrano was taken into custody by U.S. Marshals and booked into the Dallas County Jail.

Alkhalaf’s family tells FOX 4 he was a beloved husband, father, grandfather, uncle and friend. They went on to say that he was a humble man who worked hard to support his family locally and abroad.

The family are left speechless and horrified by this senseless act of violence, saying Alkhalaf’s life was taken over by a mobile phone.

Court records show Medrano is serving a five-year probation sentence for aggravated assault with a deadly weapon after pleading guilty to stabbing someone last year.

Medrano is now charged with capital murder. Her bond is set at $1 million.