Bueno-Sanchez handed the phone to Sherman, who was the front passenger, so she could look at it, and she handed him an envelope of money. He soon realized, however, that the envelope contained much less than the agreed-upon price.
When he leaned into the vehicle to point out the discrepancy, the 17-year-old girl behind the wheel hit the gas and began dragging Bueno-Sanchez, police said. He eventually became disentangled from the vehicle and struck his head on the pavement of the parking lot.
Bueno-Sanchez, who was conscious when officers arrived, was taken to a hospital, where he died three days later. He left behind his wife, their children and four grandchildren.
Family and friends described him as a good father who was always there for his children.
"He was there for everything," his daughter, Lily Olmos, told ABC 7. "Band concerts, any type of concerts. He took us to prom, he picked us up from prom. He just did everything for us. He never said no. He was always there for all seven of us.
“He was such a good person. He didn’t deserve any of this.”
Family friend Tina Rompala told the news station that it was hard to imagine Bueno-Sanchez dying over a cellphone, and at the hands of teenage girls. Rompala has started a GoFundMe page to help the family pay for his medical expenses and funeral, which is set for Thursday.
"This has been a very traumatic experience for the whole family, and I just want to try and make it a little easier," wrote Rompala, a teacher who taught two of Bueno-Sanchez's daughters.
As of Wednesday afternoon, the page had raised nearly $7,000 of its $20,000 goal.
Sherman is being held in lieu of $500,000 bond at the Lake County Jail. The two 17-year-olds are being held in juvenile detention.