BELLAIRE, Texas – The man wanted for the deadly shooting at a Bellaire pizzeria has been arrested and charged in the case, and his sister told KPRC 2 that she bought the gun that he may have used.

Kiara Taylor, 26, is charged with capital murder.

On Feb. 21 Peter Mielke, 19, was shot and killed during a robbery attempt at Reginelli's Pizza at 5303 Bissonnet. Police said the gunman shot Mielke when he could not open the cash register.

Bellaire police said detectives received information about the suspect on March 3.

Police arrested Taylor on the night of March 4 on an unrelated charge of possession of a firearm by a felon. He was held by police while investigators found more evidence that tied Taylor to the killing.

Investigators analyzed surveillance video of the shooter along with the 911 calls from the night of the shooting. They also looked at DNA evidence found at the pizza shop.

“It's obvious from the hand gestures that Peter was making that he couldn't open the register. At that time the suspect shot Peter multiple times. Calmly turned around and walked out of the store,” Chief Byron Holloway said.

After a frantic call to 911, security cameras outside the pizza parlor captured images and videos of the suspected killer.

Taylor's sister, Tarrell, told KPRC 2 that she bought a gun for him at a Cash America Pawn shop and that he paid her $500.

"I needed some money and he gave me some money to get it," she said. "He just said he wanted a gun."

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Tarrell Taylor said she was the one who turned her brother in.

"I reported it to his probation officer, then I talked to the detective," she said.

Tarrell Taylor also spoke about the victim's family.

"Tell them I'm really sorry about that," she said. "I wish I could take it back, but I can't take back what I did to get him the gun."

Kiara Taylor is due in court on Thursday.

He has a lengthy criminal history, including attempted escape, and weapons and drug charges.