BOISE - A 24-year-old Boise man has pleaded guilty in the killing of a longtime Firebird Raceway employee in April.

Tyler Martinez was accused of hitting and killing a pedestrian - 64-year-old Joel Eggers - with his car on April 8.

Prosecutors say Martinez was high on meth and using his cell phone to send text messages when he struck Eggers near the Boise Airport.

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Martinez entered the plea Monday during a change-of-plea hearing, Ada County Deputy Prosecutor Ben Harmer said.

In exchange for the guilty plea other charges related to the case were dropped: destruction of evidence, possession of a controlled substance and possession of drug paraphernalia.

In an unrelated case, Martinez pleaded guilty to one count of delivery of a controlled substance, while another delivery of controlled substance charge was dropped.

RELATED: Longtime Firebird Raceway employee killed in crash

Harmer said the vehicular manslaughter charge carries up to 15 years in prison, while the maximum cpenalty for the delivery of a controlled substance charge is life in prison.

Martinez is scheduled to be sentenced at 9 a.m. January 20.