A 46-year-old Agoura Hills woman is dead after a vehicle driven by a man suspected of being under the influence struck and killed her Tuesday morning while she was jogging on Lindero Canyon Road near Bowfield Street. The fatality occurred on the T.O. side of Lindero Canyon Road.

Nicholas LaGrotta, a 23-year-old Santa Rosa Valley resident, was driving his black Subaru Forester south on Lindero at 6:20 a.m. when he veered off the road and crashed through signs, utility boxes and vegetation.

Karey Marsh was jogging in the bike lane when she was hit and thrown about 30 feet into the brush, according to Detective Eric Buschow of Ventura County Sheriff's Department.

LaGrotta, who was taken to Los Robles Hospital with three broken vertebrae and multiple abrasions, told authorities he didn't realize he had hit anyone.

"When deputies and the fire department arrived they weren't sure a pedestrian had been hit until they saw her shoes on the sidewalk," Buschow said.

Thermal cameras were used to locate the woman's body, and chainsaws were needed to cut through the thick growth in order to extricate her. Marsh was pronounced dead at the scene.

The front end of LaGrotta's car was badly damaged. The former Oak Park student who graduated from high school in 2004 is under arrest for vehicular manslaughter and driving under the influence.

"It's just tragic, and I'm sure his life is pretty much gone, too," said a school official who asked to remain anonymous. "He hasn't been a student who has come back to visit and check in with us."

Marsh, a personal trainer at the Spectrum health club, was single and had no children, according to Shasta Gainer of the Ventura County Medical Examiner's office.

Nearby relatives were notified of her death.