Warrant: Witness saw driver flee scene of fatal Raleigh crash

Kiera Jo Sprouse, 23, of 10610 Westgate Club Drive, faces multiple charges, including second-degree murder, in Thomas John Anstey's Jan. 19 death on westbound Interstate 440.

A warrant to collect data from Sprouse's iPhone says she was traveling in excess of 100 mph when she hit the rear of Anstey's motorcycle and pushed him 532 feet before he dislodged from the front of her car.

She crashed shortly thereafter into a guardrail, which caused her car to travel another 1,297 feet before coming to rest near the exit ramp for Ridge Road and Glenwood Avenue, according to the warrant.

"There is no evidence that Ms. Sprouse ever applied the brakes before or after impact occurred," the warrant says.

Police found Sprouse at her apartment approximately two hours later with alcohol on her breath and a blood-alcohol content of 0.13.

Investigators applying for the search warrant believe the data on Sprouse's phone could help them determine where she had been before and after the crash and what she might have been drinking beforehand.

Sprouse, who also faces charges of driving while impaired, felony death by vehicle, aggravated felony death by vehicle and felony hit-and-run, remains in the Wake County Detention Center, where she is being held without bond.