Bones and skulls visible in the back seat of a car near an abandoned cemetery on Philadelphia’s outskirts led police to a basement filled with body parts, which authorities say were hoarded by a man now accused of stealing about 100 sets of human remains.

Officers say a Tuesday night arrest culminated a monthslong investigation into break-ins at Mount Moriah Cemetery, where at least 26 mausoleums and vaults had been forced open since November.

Investigators later searched the Ephrata home and storage unit of Jonathan Christ Gerlach, 34, and reported finding more than 100 human skulls, long bones, mummified hands and feet, two decomposing torsos and other skeletal items.

“They were in various states. Some of them were hanging, as it were. Some of them were pieced together, some were just skulls on a shelf,” Delaware County District Attorney Tanner Rouse said.

Most were in the basement, authorities said, and they also recovered jewelry believed to be linked to the graves. In one case, a pacemaker was still attached.

Gerlach was charged with 100 counts each of abuse of a corpse and receiving stolen property, along with counts of desecrating a public monument, desecrating a venerated object, desecrating a historic burial place, burglary, trespassing and theft.

He is jailed on $1 million bond. No lawyer was listed in court records. A message seeking comment was texted to a cellphone linked to him.

Police say Gerlach targeted mausoleums and underground vaults at the 1855 cemetery.