Mallory was on trial for ordering the shooting death of Bryant Adderley in August 2009. The 29- year old victim was found shot 22 times inside his Bakersville home.
The trial began Monday in Somerset, the prosecution called several witnesses to the stand including the men who shot the victim.
Toriano McCray and Roland Washington plead to third degree murder charges in February. They testified that they were given order from Mallory to "teach the victim a lesson" and killed him. A third man, the get-away driver, Ronald Zeigel also testified against the defendant.
The jury found Mallory guilty on first degree murder, conspiracy to commit murder, corrupt organization and several other offenses. A sentencing date has been set for June, the defense plans to appeal the verdict.
"Obviously it's disappointing for my client and myself," said Defense Attorney Kevin Wray. "His best friend was killed and he's been double crossed."
"Once they got through the first charges whether it was guilt or innocence we knew the rest would fall into place it was either all or none in our opinion," said District Attorney Lisa Lazzari Strasiser. "This case took a lot of time and hard work for everyone involved."