Cleveland ? The number of bodies found in and near a rapist’s home rose to at least 10 on Tuesday when authorities unearthed four corpses from the backyard and found a skull in a bucket in the basement.

Cleveland police stopped searching for victims for the night and planned to continue today. They have extended their efforts to boarded-up homes in the neighborhood where residents complained for years of a stench that one even said “smelled like a dead body.”

Some in the community want an investigation into why it took so long to trace the grisly source.

Anthony Sowell, 50, a registered sex offender who lives in the home, was charged Tuesday with five counts of aggravated murder, as well as rape, felonious assault and kidnapping. He was to be arraigned today, police spokesman Lt. Thomas Stacho said.

“It appears that this man had an insatiable appetite that he had to fill,” police Chief Michael McGrath said.

Police discovered the bodies of six women Thursday and Friday after a woman reported being raped at Sowell’s home. All six were black, and five were strangled. Authorities did not provide the genders or races of the bodies found Tuesday.

Police do not know whether the skull belongs to an 11th victim, Stacho said. McGrath said the skull was found wrapped in paper bag in a bucket.

Fire department crews plan to search in the walls and ceiling of Sowell’s home, McGrath said.

“I would like to believe there is nothing else there, but we won’t know until we search everything,” he said.

The bodies could have been there anywhere from weeks to months to years, said Powell Caesar, a spokesman for the Cuyahoga County coroner.