Police are looking into the likely possibility that alcohol was the cause of a car accident last Saturday that killed a 19-year-old woman.
Laurel Alice Williams, a 2006 Foothill High School graduate, was killed when the Ford Mustang she was riding in, traveling southbound on Foothill Road near Highland Oaks Drive, careened out of control and collided head-on with a Mercedes SUV going northbound, according to police.
The incident occurred at 10 a.m. Saturday. The driver of the Mustang, also a 19-year-old woman from Pleasanton, was ejected out of the passenger side window, according to Sgt. Michael Collins. She sustained extensive head trauma and was taken to Eden Medical Center. She was released on Tuesday.
The driver of the Mercedes, a 70-year-old woman from Pleasanton, sustained moderate to serious injuries and was also transported to Eden Medical Center, Collins said. She has also since been released.
Collins said police are continuing their investigation, adding that if toxicology tests show the driver was under the influence of alcohol, that criminal charges could follow. Those tests were expected to get back to the police department either today or Monday.
Sources identify the driver to be Katie McKewon, also a 2006 graduate of Foothill High School.
Since the accident last weekend, a number of parents have called the Pleasanton Police Department, Collins said.
"With an investigation like this, you need to make sure you dot all your "i's" and cross all your "t's," Collins said.
A number of people have come forward to help with the investigation, he added.
"There had been kind of an ongoing, all-night party," Collins said. "It appears the girls had been at a small gathering in the area and apparently were returning home when the accident occurred."
Williams, the woman who was killed, was attending Las Positas Community College and had planned to transfer to San Diego State University to pursue a degree. Memorial services were held Wednesday and Thursday.
Child endangerment, DUI charges for man in two-vehicle crash
In a different incident, police arrested a 53-year-old man suspected of drunk driving Saturday evening in Pleasanton after he caused a two-vehicle crash that left a 9-year-old girl in critical condition, police said.
Pleasanton resident Robert Brian Monaghan was driving eastbound on Owens Drive near Rosewood Drive with his 4-year-old son shortly after 6 p.m. when Monaghan rear-ended a vehicle with a family of four inside, according to Sgt. Kris Phelps.
The vehicle that was struck careened into the center divide, Phelps said.
A 9-year-old girl inside the smashed vehicle suffered multiple head injuries and was airlifted to Children's Hospital in Oakland, where she was listed in critical condition, according to police. She remains in that condition and it's unknown when she'll be released, according to Sgt. Collins.
The girl's father was transported to Eden Medical Center, where he was treated and later released, Phelps said.
Monaghan was arrested on suspicion of driving under the influence and child endangerment, and booked into Santa Rita Jail, according to officials.
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