This is an archived article that was published on sltrib.com in 2016, and information in the article may be outdated. It is provided only for personal research purposes and may not be reprinted.

A 69-year-old Logan man who admitted sending adult-oriented material to a high school student was sentenced to prison on Monday.

Thomas Mark Thackeray had pleaded guilty as charged last month in 1st District Court to one count of third-degree felony stalking.

On Monday, Judge Thomas Willmore sentenced Thackeray to up to five years at the Utah State Prison, to run consecutively to the sentence he is currently serving in a similar case.

The judge also fined Thackeray $9,250, but said the fine would be waived if the defendant completes complete sex offender therapy in prison.

Police have said that at the time of Thackeray's June arrest, he had been involved in active stalking behavior for several months.

His arrest came a day after the police department released video of a suspect in the lobby of a Logan post office and requested the public's help in identifying the man.

Thackeray, who was on parole for similar crimes, allegedly mailed five packages of adult material and sexually explicit letters to the Logan High student, according to police.

Logan police Lt. Rod Peterson said the first package was sent March 10 and the most recent went out May 21.

Peterson said the packages include "sexually explicit devices," but declined give further details. The letters, he said, included instructions on how to use the devices and say "sexually explicit, perverted things."

Utah court records show that in 2008, Thackeray, then living in Riverdale, in Weber County, pleaded guilty to four second-degree felony counts of dealing in harmful material to a minor and one third-degree felony count of stalking. He was sentenced to prison for up to 30 years.

In that case, he was accused of distributing pornographic fliers that showed newspaper photos of a high school athlete superimposed on sexual images. The fliers were found posted at a grocery store and on a mailbox and delivered to the teen's house.

Thackeray was paroled from the Utah State Prison in April 2014, but court records show he was returned to prison in July.

In 1992, he pleaded guilty to one count of third-degree felony dealing in harmful material to a minor. Initially sentenced to probation, he ended up being committed to prison in 1994.