Philadelphia police provide update on Chew Avenue investigation

Philadelphia police are sharing more information about an investigation that centers on a house on the 400 block of Chew Avenue in the city's Olney section. 

Detectives last month obtained an additional search warrant in connection with the ongoing investigation. Investigators working at the house on the 400 block of West Chew Avenue were looking for evidence of wet cremation, which is when a mix of chemicals is used to break down human remains, law enforcement sources with direct knowledge of the case told CBS News Philadelphia.

Crews also excavated part of the property and removed some sewer lines. 

Eugene Horsch, the homeowner, was arrested for weapons and drug offenses in June. He was allegedly found in possession of fake DEA and FBI badges. Police said at the time that they found a complex setup in the home's basement of water lines leading to a 55-gallon drum.

The home is also the last known location of Amy McHale, who disappeared in 2016.