Henderson was arrested twice for DWI within a two-month span late in the 2013 season. The first incident resulted in his former team, the Minnesota Vikings, suspending him for one game. Following the second arrest, Minnesota released Henderson outright.
Henderson spent a month in a rehab facility and pleaded guilty to a misdemeanor charge before receiving a four-game suspension from the league last September.
Henderson did not play in 2014 after failing to draw interest from teams on the open market. Before signing with the Jets, Henderson reportedly met with the Kansas City Chiefs and San Francisco 49ers. He's expected to provide depth behind linebackers David Harris and Demario Davis.
Henderson joined the Vikings out of the University of Maryland in 2008, but did not start until the 2011 season.
Henderson was excelling during the 2013 NFL season at the time of his arrests. He had started 12 games and was responsible for 112 tackles and four sacks.