UPDATE: Police in Washington D.C. have arrested 34-year-old Daron Dylon Wint, who was wanted for the murder of four people in their upscale Washington home last week.

Watch the latest report about Wint's capture above.

Police have reportedly used leftover pizza crust to identify a suspect in the murders of a Washington, D.C. family and their housekeeper.

Authorities have identified 34-year-old Daron Dylon Wint as a suspect in the killings of 46-year-old Savvas Savopoulos, his 47-year-old wife Amy Savopoulos, their 10-year-old son Philip, and 57-year-old housekeeper Veralicia Figueroa. The victims were found dead inside the Savopoulos family’s burning mansion last Thursday.

Authorities say they used leftover crust from a Domino’s pizza – which somehow survived the fire – to link Wint to the grisly crime. Investigators believe Wint spent the night at the home, holding the victims against their will and possibly torturing them.

A Fox affiliate spoke with a Domino’s delivery driver, who said that two pizzas were ordered to the home that night. He said that he left the pizzas outside, where there was a cash envelope with his payment.

Police say that Wint is on the run and may have a lot of money with him. An assistant to the family said he dropped off $40,000 in cash on the morning of the murders. Police didn’t find the money in the home.

The family’s stolen Porsche was found torched in Maryland, the same area that’s home to the suspect. Authorities searched Wint’s father’s home, but did not find the suspect.

In another strange twist, one of the family’s longtime employees was told the night before the murders not to come to the house the next day.

Leland Vittert reported on the stunning developments this morning. Watch his report above.

On "America's Newsroom," Bill Hemmer sat down with retired New Jersey police detective Steve Rogers to discuss the case.

Hemmer noted that the father was tortured in his own bed and burned alive. The three others were bound in another bedroom and were also burned. 

Rogers said those facts lead him to question whether Wint acted alone and whether he was hired by someone to carry out the killings.

"There are so many loose ends that the police will have to put together," said Rogers. 

He added that if others were involved, they may be looking to eliminate Wint in order to cover up their own involvement.

Watch his analysis below. 

UPDATE 12:30p ET: Cathy Lanier, Washington, D.C. police chief, updated the media on the case, saying authorities believe Daron Dylon Wint is in the Brooklyn, New York area.

Lanier said the NYPD is providing assistance in trying to find Wint. 

Savvas Savopoulos was the president and chief executive of American Iron Works. Lanier said Wint worked for American Iron Works at some point.

Lanier said investigators have not ruled out the possibility that others were involved in the murders.

Video Released of Person of Interest in Quadruple Homicide & Mansion Fire