Ricardo "Rick" Aiello is a Special Agent with the Los Angeles Field Office of the FBI. In 2019 and 2020, he was partnered with Dawn Ruth. He was the junior partner. On Monday, January 13, 2020, the two agents went to the home of Mickey Haller in response to a subpoena that Haller had delivered to their Westwood office. They told him they would not be testifying, and they warned him against bringing the FBI into his murder trial. When Haller told them, he would bring the FBI into the case in order to protect himself from wrongful prosecution, Aiello grabbed Haller pushed him against a wall. Agent Ruth told Aiello to back off, which he reluctantly did.
On Thursday, February 27, Aiello and Ruth attended a meeting at the D.A.'s office. In attendance were Haller, Maggie McPherson, Dana Berg, John Kelly, Matthew Scallan, Wilson Corbett, Judge Warfield, and a couple of others. The outcome of the meeting was agreement that all the charges against Haller would be dropped and he would be given full exoneration. Aiello was not pleased with the agreement but there was nothing he could do about it.