A former Dean Morgan Junior High Campus Supervisor will be spending time behind bars after admitting to indirectly contributing to the death of another man.

Jon Freiberg was sentenced to 14-to-18 years in prison after he pleaded guilty to one felony charge of involuntary manslaughter, along with one felony charge of conspiracy to possess or deliver a controlled substance.

Special Agents with the Wyoming Division of Criminal Investigation say in August 2015, Casper Police were called to the Days Inn on East E Street for a call of an unresponsive male in a vehicle.

Officers found Richard Serafin dead when they arrived.

One witness said earlier in the day, he saw Freiberg carrying Serafin to the vehicle and placing him inside and other interviewees said they had been involved with Freiberg because he was selling them meth.

An autopsy report says Serafin died of a cardiac event due to the stress of meth intoxication, combined with hypothermia, positional asphyxia and dehydration of the heart.

The report also stated that Serafin had a significant heart condition that he may not have known about, and he had been involved in sexual activity, not long before his death.

When interviewed, Freiberg admitted to putting Serafin in his car, but denied providing meth, and eventually refused to talk anymore with investigators.

Then in January 2016, a confidential informant contacted law enforcement, stating that Freiberg wanted to sell him some meth.

Police were able to video and audio record the transaction, and during the purchase, Freiberg commented that when he was with Serafin, he had put some meth in a cup and Serafin had accidentally consumed it.

At the plea change hearing, Freiberg said he had acted recklessly, when he put Serafin in the hot vehicle, but claims he asked Serafin if he wanted to go to a hospital, after Serafin had consumed the meth.

He later added that he could've taken Serafin to the hospital regardless if he wanted to go or not, or could have called for medical assistance.

Freiberg actual sentence was 14-to-18 years in prison for the involuntary manslaughter charge, and eight-to-12 years for the conspiracy charge.

Both of the sentences will run concurrent with each other, or at the same time.