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Boise man pleads guilty in connection with fatal Ada County crash

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Posted at 4:59 PM, Mar 07, 2017
and last updated 2017-03-07 18:59:56-05

Cole Dyer of Boise is scheduled for a sentencing hearing April 27 after pleading guilty Tuesday to a misdemeanor count of dispensing alcohol to a minor in connection with a fatal crash last spring that resulted in the death of 17-year-old Clayton Tully.

Ada County Sheriff’s Office deputies arrested Dyer (pictured) in November as part of their investigation into the crash.

They say Clayton Tully had a blood alcohol content level in excess of the Idaho legal limit of .08 for adults when he lost control of his truck in the desert east of Swan Falls Dam in the early morning hours of May 29th.
Tully and a 15-year-old boy who was a passenger in the truck were not wearing seat belts when it rolled. Both were thrown from the truck.

The boy sustained serious injuries and was taken to a local hospital by air ambulance. Tully was pronounced dead at the crash site.

A 16-year-old boy also in the truck sustained minor injuries.

The boys were at a graduation party in the desert south of Kuna when they decided to go for a drive east of the Swan Falls/Moore roads intersection.

Tully was driving on a dirt road when he lost control of the pickup as it was going around a corner.

Deputies estimate he was driving about 50 miles an hour when he crashed. The 16-year-old called 911.
Deputies found the crash site a short time later, and called for the air ambulance.

Deputies interviewed other teens both at the party and the crash site and determined there had been drinking at the party earlier that night, when some of the teens left to get more alcohol.

That was when Cole Dyer bought beer for the teens, investigators say, just hours before the fatal crash.

The party site was a remote agricultural building known as “Partypatopia” on Bureau of Land Management land. 

It has since been demolished.

The crime of dispensing alcohol to a minor is punishable by up to a year in jail and up to a $1,000 fine.