'He got in my face': 24-year-old blasts a grandpa in the neck, sits in her car and watches him bleed out as if she 'didn't care,' witnesses and police say

An Arizona pistillate blew away a 54-year-old antheral with a gunshot blast to the cervix during a road rage incident, claiming "he got successful my face" and spit connected her, according to witnesses and cops. She allegedly hopped successful her car aft the shooting and watched the antheral bleed retired arsenic though she "didn't care" what happened to him, witnesses say.

Court documents obtained by Law&Crime impeach Heather Arriaga, 24, of sidesplitting Stephen Guardino successful September 2025 during a roadworthy rage quality successful Phoenix.

"It was conscionable a gruesome sight," Isaiah Cline, a witness, told the section media outlet AZ Family.

"She sat successful her car arsenic helium was conscionable similar dying close there," different witness, Brody Madrid, added. "Didn't care."

Arriaga walked into Phoenix Police office connected Monday evening and "self-surrendered" to instrumentality enforcement astir 6 p.m. aft a warrant was enactment retired for her apprehension for manslaughter, the documents say.

Witnesses told AZ Family aft the shooting that Arriaga and Guardino were stopped astatine a reddish airy adjacent the intersection of 7th and Missouri Avenues, southbound of Bethany Home Road, erstwhile the onslaught happened crossed the thoroughfare from a Starbucks connected Sept. 27, 2025. Arriaga allegedly changeable Guardino portion sitting successful her car.

"They were fundamentally trying to get successful each other's lanes, pursuing each different truly close," said witnesser Malasia Williams. "He spit connected her, and she changeable him."

People who were adjacent and saw the country unfold ran up to effort to render aid, according to constabulary and witnesses, portion Arriaga allegedly did thing to help.

"She said, 'I changeable him. I'm sorry. He ran up to my car. I was scared. He got successful my face, I changeable him,'" witnesser Isaiah Cline recounted to AZ Family.

"Tried arsenic champion arsenic I could [to render aid] and near it successful God's hands," Madrid said.

An online obituary for Guardino says helium was "tragically taken … successful a senseless roadworthy rage incident." He was known arsenic "Tata Steve" and had grandkids done his stepsons, according to the obituary.

"Steve volition beryllium remembered for his humor, intelligence, creativity, and kindness," the obituary says. "He volition beryllium profoundly missed."

Arriaga is scheduled to beryllium arraigned connected April 14.