A Bellevue man and Swissvale woman pleaded guilty yesterday to dumping the body of a friend who died of a drug overdose in a Braddock Hills cemetery.

Shirley D. Campbell, 52, told police Robert S. Welsh, 44, and Gregory P. Sheasley, 47, of Penn Hills, were smoking crack and shooting heroin at her home May 21. The next morning, she and Mr. Welsh found Mr. Sheasley dead.

According to an affidavit, Ms. Campbell rented a van May 22 and got two men she knew as Darryl and Chas to transport Mr. Sheasley's body, which was packed into a black plastic toolbox and secured with two padlocks, to the cemetery.

A couple walking their dog in Monongahela Cemetery saw the two men park the van, open its rear doors and heave the toolbox over the hillside. As the van left, a man and a woman in a gold car followed behind it.

The dog walkers returned home for dinner and then the man, William Hart, 44, returned to the site with a pair of bolt cutters, cut the padlocks on the box and found the body. He informed Braddock Hills police, who broadcast descriptions of the two vehicles Mr. Hart had seen.

Swissvale police tracked the vehicles to a home in the 2200 block of Hawthorne Avenue.

In separate interviews with Allegheny County police detectives, Ms. Campbell and Mr. Welsh gave similar accounts of how they had disposed of Mr. Sheasley's body.

They said Mr. Sheasley had just won a settlement from an accident and the threesome had spent his last day driving around paying people money he owed them. He even paid the pair for driving him around.

Allegheny County Common Pleas Judge Jeffrey A. Manning sentenced them both to two years' probation for abusing a corpse, Mr. Welsh had a previous conviction for driving under the influence.