Teen pizzeria employee's alleged killer faces judge in Houston

HOUSTON (KTRK) -- The alleged killer of a teenage pizzeria employee made his first appearance in front of a Harris County judge.

The details of Peter Mielke's death are shocking and violent.

The victim's mother and friends were in court. Mielke's mother cried and shook her head as the details of her son's murder were read out loud.

WATCH: Police make arrest in deadly robbery at Bellaire pizzeria

Kiara Elijahjuan Taylor is accused of gunning down 19-year-old Peter Mielke at the Reginelli's Pizzeria.

Prosecutors say Kiara Taylor went into Reginelli's Pizza around closing time. Taylor pulled out a gun and ordered Mielke to open the register, but the 19-year-old employee could not open the cash drawer.

That's when Taylor allegedly shot Mielke several times then left. Prosecutors say Taylor then walked back inside the restaurant and shot Mielke several more times.

Taylor allegedly told his sister he would not have shot Mielke if Mielke had opened the register.

WATCH: Sister of alleged killer speaks out

The sister who turned in her brother for the Bellaire pizzeria shooting speaks. Jeff Ehling reports.

Taylor's sister recognized her brother on surveillance video and called her brother's probation officer to tell authorities about her brother's involvement in the murder.

We also learned Taylor has an extensive criminal record and was out on parole at the time of the shooting.

Mielke's mother and friends did not speak to us as she left the courtroom.