A man was convicted of killing four people in 201
Darron Wint, 37, was convicted of all 20 charges, including first-degree murder, abduction, burglary, Extortion, Arson, and Theft
Prosecutors say that Wint's DNA was found on a piece of pizza delivered to the house on the night of the kidnapping.
The next day, firefighters spotted the dead family burning their house.
The police believe the victims – Savvas and Amy Savopoulos, their 10-year-old son Philip, and their housekeeper Veralicia Figueroa – were tortured in the $ 4.5 million family house in Washington's upscale Woodley Park neighborhood.
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All victims were beaten, strangled and stabbed in the burning mansion on May 14, 2015.
During the trial, a medical examiner said that the 10-year-old boy may have been burned alive, though the injuries were too severe to be conclusive.
During the six-week trial, more than 60 witnesses were called to testify, including experts who said Wint's DNA was found on pizza as well as other objects inside the house, including a knife.
Motivated by & # 39; greed & # 39;
Prosecutors say that Wint, who previously worked as a clerk at a company owned by Savopolous, had fallen into hard times, causing him to kidnap the family and claim a $ 40,000 ransom.
"He had no options left, he did that, he's the one who killed those people." US Attorney Laura Bach said during the closing discussion of the process.
"Now you hold him responsible, hold him responsible for what he did," she said, according to the Washington Post.
The victims were killed, though Wint paid the ransom by a Savoplous family assistant.  During the trial, Wint surprised the court by taking the stand to testify to his own defense, claiming that the murder was in fact staged by his half-brother.
The prosecution admits he may have been helped, but Ms. Bach said, "Also if Darron Wint has help, he's still guilty. "
Appraiser, Wint, who was arrested nearly a week after the attack, used his cell phone to search online: "How to Beat a Polygraph Test" and "10 Hiding Cities for Refugees".
During the process, the family's grandfather testified the boy's love for Harry Potter and Trains.
The couple's two daughters were at boarding school at the time of the attack.
He is to be sentenced on February 1st.