FOX 5 has identified the employee of Savvas Savopoulos who brought $40,000 in cash to his Northwest D.C. home on the day of the quadruple murders.
The employee has worked for Savopoulos for a few months as an assistant and driver. Police say he has been interviewed and is cooperating.
The assistant, who is an amateur race car driver, often drove Savopoulos. He posted photos on his Instagram account of the interior of Amy Savopoulos' Porsche that was taken from the Woodland Drive house and set on fire.
A friend of Amy's -- who has been driven in the Porsche -- recognized the inside as hers. He captions the photo "another day on the job, my office today is pretty nice."
Friends of the Savopoulos family say they are car collectors and they own a Bentley and a Range Rover. The interior of both are seen on the assistant's Instagram account.
He writes under the photo of the Bentley that, "I'm driving for a CEO in DC." He also wrote that, "My office has many leather bound seats and smells of rich mahogany."
The Savopoulos' 10-year-old son Philip loved to race go karts. Friends of his mother say the boy was in an accident recently and his mother believed he had a concussion. This photo of Philip in a go kart is from his own Facebook page.
The assistant worked at the Autobahn Indoor Speedway in Jessup, Maryland until March. At the Go Kart racing site on Thursday, we were told that the Savopoulos assistant was "let go" in March. He had worked there since it opened in 2013. The employees have seen both Savvas and Philip Savopoulos many times to race go karts. They believe that is how he met the assistant who he recently hired.
The Savopoulos' housekeeper, Nelitza Gutierrez, told FOX 5's Paul Wagner that this employee told her that he dropped off the cash on Thursday morning. Sources say he picked up the cash earlier that morning from the American Iron Works company owned by Savopoulos.
According to a police source and Gutierrez, the employee says Savopoulos was going to use the cash at an auction for the martial arts center he planned to open the next day in Chantilly, Virginia.
The assistant's Facebook and Twitter pages say he lives in Annapolis, Maryland. His mother works at a local church. Staff at the church said she had not been to work in several days.
The employee has not responded to our requests for more information.