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UPDATE: Man Who Killed Tracy Teen in Hit-And-Run Arrested

Update April 28,2018: 32-year-old, Gabriel Jon Bailey, was arrested by Tracy police for felony Hit-and-Run and vehicular manslaughter. Several tips came in that led investigators to the 200 block of La Monte Lane where they served a search warrant and located the white 2017 Honda Accord belonging to Bailey. The vehicle had damage consistent with evidence recorded at the scene of the crime.

TRACY -- A teenage girl was hit by a car then left to die all while her helpless and shocked friends watched.

The Tracy Police Department is now pleading with the public for their help as they try to catch the driver of a deadly hit-and-run crash that took place early Saturday on South Macarthur Drive near West Schulte Road.

Overcome with grief, friends Catie Maree and Courtney Madera held each other as they tried to come to terms with 15-year-old Alexia Rubio's death.

"It’s hard but I mean she wouldn’t want me to be sad. So I’m trying to stay up for her," Maree told FOX40.

Rubio had been walking with a group of three other friends, according to the police department. Investigators say a driver of a newer, white, four-door sedan hit the girl near the Tracy Public Cemetery then drove off. She was pronounced dead at the scene.

Friends want the driver to come forward.

"I don’t get how you can just kill someone and just go away," Madera said.

Maree and Madera say they were not with Rubio when she was hit. Maree shared pictures of her best friend in happier times. She said the teenager chose happiness above all else.

"She did whatever she wanted to do," Maree said.

Loved ones created a makeshift memorial with candles, her picture and stuffed toys to honor her short but colorful life.

FOX40 spoke to the girl's father. He said his daughter was vibrant and loving. She leaves behind a twin brother and a very devastated family.

"Everybody knew her, everybody loved her," Maree said. "She was close with a lot of family. She stayed with a lot of family."

If you have any information about this case, contact the police.

A GoFundMe has been set up to help Rubio's family.