Cori Start, Utah Department Of Public Safety
Two people were killed in Parleys Canyon when their car slammed into the back of a slower-moving semitrailer truck early Sunday.

Two auto-pedestrian accidents and a crash involving a car and a semitrailer truck killed four people on Utah roads over the weekend.

In Layton, a 15-year-old girl died about 11 p.m. Saturday while trying to cross I-15 on foot. The car that hit Chelsea Smith Peaslee didn't stop, and police are hoping the public can help them find the driver.

Peaslee was trying to get from the west side of the freeway to Layton Hills Mall, according to Utah Highway Patrol spokeswoman Cori Start. She was with another 15-year-old girl.

Police are looking for a dark blue passenger car with front-end damage. Anyone with information about the incident is asked to call the Davis County Sheriff's Office at 451-4141.

In Ogden on Saturday evening, a 73-year-old woman died after being run over twice by the same motor home on 24th Street.

Marie Gabaldon was riding a bicycle and trying to cross the street near the intersection with B Avenue (600 West), according to Ogden Police Lt. Scott Conley. She rode directly into the path of a 30-foot motor home, which struck her.

The motor home driver, a 52-year-old Ogden man, immediately pulled over and backed up in an effort to see what he had hit, witnesses told police. In so doing, he ran over the woman again, Conley said.

Police believe the time of day may have contributed to the crash. The streets had been cleared of snow by the time it occurred, Conley said.

Ogden city officers continue to investigate the accident. No citations had been issued as of Sunday.

Early Sunday morning two people died when their car, traveling at freeway speeds, rear-ended a semitrailer truck on I-80.

The crash occurred in Parleys Canyon near Park City, police said. The car drove over the crest of a hill about 1:30 a.m. and came upon the large truck, said Utah Highway Patrol spokeswoman Cori Start.

The eastbound car hit the slow-moving truck then spun into the median and across westbound lanes, Start said. The car's driver died at the scene. A passenger was taken from the scene by medical helicopter but died within a few hours.

The driver of the tractor-trailer wasn't hurt.

The names of the deceased were not released Sunday pending family notification, Start said.

A fund to cover Peaslee's funeral expenses has been set up at US Bank, according to KSL-TV. Donations will be accepted in her name. The teenager's funeral will be held at 11 a.m. Thursday at the Lindquist Mortuary in Layton.

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