A search warrant unsealed Wednesday has revealed new information about the murders of a corporate executive, his wife, their son, and their housekeeper last month in their Washington D.C. mansion.

According to WTTG, the search warrant said investigators found a bloodied baseball bat in the second floor bedroom, near the body of 46-year-old Savvas Savopoulos. The CEO of the Hyattsville, Md.-based American Iron Works construction supplier had suffered apparent trauma to the back of his head. The document said that Savopoulos' wife, Amy, was also found in the bedroom with lacerations to her throat and head.

The family's 57-year-old housekeeper, Veralicia Figueroa, was also found in the bedroom and received CPR before being transferred to a local hospital, where she was pronounced dead. The Savopoulos' 10-year-old son, Philip, was found in another bedroom on the second floor with severe burns on his body.

The victims were found May 14 after emergency personnel responded to the fire in an upscale part of Northwest Washington, just north of the Vice President's official residence. Authorities believe the four had been held overnight before they were killed and the fire was set.

The only suspect who has been charged in the case is 34-year-old Daron Wint, a former welder at American Iron Works who was arrested May 21. However, investigators believe that there was more than one person involved in the crime. Police identified Wint as a suspect after taking DNA from the leftover crust of a pizza that was delivered to the home the night before the killings. 

Previous search warrants unsealed last week revealed that a shoe or boot print was found on a exterior door of the Savopoulos home, suggesting that someone forced their way in. Another warrant detailed the search of a car belonging to Jordan Wallace, an assistant to Savvas Savopoulos who dropped off a package containing $40,000 in cash at the home the day of the fire. Wallace has not been charged in connection with the case.

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