A Queens attorney allegedly bribed a witness to falsely testify at the double murder trial of a client, prosecutors at the U.S. Attorney’s Office for the Eastern District of New York have claimed in a superseding indictment.

U.S. Attorney Richard Donoghue’s office said John Scarpa Jr. was arrested Tuesday with violating the Travel Act by bribing a witness during the 2015 murder trial of Reginald Ross. Ross was accused of two unrelated murders, both in 2010: the first a road construction worker killed at his job site because Ross was upset about traffic, and later, in a case of mistaken identity, the brother of a man Ross thought he was targeting over a drug debt.