The townhouse in Los Angeles where Nicole Brown Simpson and Ron Goldman were murdered in 1994 had so much bad karma, its address was changed from 875 to 879 South Bundy Drive. When O.J. Simpson sold his $5 million Tudor mansion in 1998, the new owner bulldozed the home and all the buildings on its property.
Today, the house of horrors where serial killer Anthony Sowell murdered 11 women and buried them in his backyard, has been condemned by Cleveland's building and housing department, according to the Plain Dealer.
But that hasn't stopped Internet hawkers from selling the soil from the home's grounds.
Owners of the crime collectibles website Serial Killer Ink, sells one gram of the soil packed in a jewelry bag for $25.
The site also has dirt from the property of Dorothea Puente, the Sacramento, Calif., boarding house owner who killed her tenants for their Social Security checks in the 1980s.
"In all honesty, a lot of people who are creeped out by this stuff buy it," said co-owner Jessika Gein of Jacksonville, Fla. "It's a weird thing to show off to their friends, and guests come over and look at it."
"We live in a sick world," said her husband, Eric Gein. "It's true that there is a fascination with dark history."
Surprisingly, realtors in Pennsylvania, as in other states including Vermont, are not required to disclose a home's violent history.
Weinrich said he would gladly tell a buyer the history of the home if they ask. But by law, he is only required to disclose that he is related to the seller, among other things such as details of structural issues.
"No one has ever raised the issue," he said.
The home had been the richest in the area when it was built along with a massive three-story house and a carriage house for servants in the 1860s by a family that produced ocean liners.
The writer Ezra Pound lived four houses over and the Stetsons [of hat fame] lived around the corner.
"The house has a lot of nautical themes," he said. "The doorknobs are from a boat. ... The ceilings, even on the third floor, are 10 feet tall."
After the murders, when police investigators did a reenactment of the crime scene, Weinrich was there.
"[Lamya] was murdered in the office on the first floor," he said. "He came out of the bedroom and got ahold of the daughter. She had run down to help her mother. He slashed her up, but she acted like she was dead and protected her unborn child."
"He got [Al-Faruqi] against the door and stabbed him 20 times," said Weinrich. "His last words were, 'Enough is enough,' and then he collapsed."
The intruder walked down the street and left the bloodied knife in a trash can. He later confessed to the crime after being questioned in a domestic violence case, according to Weinrich.
The house sat unsold for a year.
"My grandmother was religious and worked in a rectory down the shore," he said. "She left crosses and religious artifacts around the house. We had a priest come and bless the entire house -- inside out, from room to room."
Such superstitions are common, even among the secular.
David Farkas, 64, of Amherst, Mass., earns his living as a house healer who claims he can rid a house of negative energy -- even remotely. He charts the property's "ley lines" or water sources, and their proximity to battlefields and burial sites.
"People don't want to believe it's a problem, but a lot of people have dramatic encounters with ghosts," he said. Farkas charges by the square foot, with fees that start at about $200 for 2,000 square feet.
"Frequently, people will buy a house and they don't know violence occurred, but something feels really wrong," he said. 'I will tune into that. ... To me, demons are parasites that feed on human negative emotions."