David Russo is the father of Corbin Austin Black, who was adopted by musicians Ricki Austin and Jared Black. David tracked Corbin down and wanted to form a father-son relationship with Corbin while tutoring him for his school studies.
At a public event, David told Corbin the truth about the two of them before running off, causing Corbin to run into the street and be killed by a car, with Ricki running out and witnessing is death. With that and taking into account the lessons David had with Corbin in private, she believed David was molesting his son and demanded the police charge him.
He was investigated and interrogated by the police, especially after seeing a collage of photos and souvenirs belonging to Corbin in David's home. He was no longer considered a suspect when he finally revealed his paternal relations and records confirmed, leading to his release. (SVU: "Abuse")