"ImageCap Full name Gender Profession Family Weapon Date of birth Date of death Status First appearance Last appearance Portrayer Jack Kirstein is a notorious arms dealer dealing illegal arms on the black market. He made the deal with the crooked ATF agent, Bennet Hirsch of a deadly military-grade government weaponry to a terrorist organization. He is the secondary antagonist in the episode Surf N Turf in Lethal Weapon. He is portrayed by Kwame Patterson."@en . . "ImageCap Full name Gender Profession Family Weapon Date of birth Date of death Status First appearance Last appearance Portrayer Jack Kirstein is a notorious arms dealer dealing illegal arms on the black market. He made the deal with the crooked ATF agent, Bennet Hirsch of a deadly military-grade government weaponry to a terrorist organization. He is the secondary antagonist in the episode Surf N Turf in Lethal Weapon. He is portrayed by Kwame Patterson."@en . . . . . "Season 1 Episode 2: \"Surf N Turf\""@en . . . "Jack Kirstein"@en . . . "Jack Kirstein"@en . . . "Arms Dealer"@en . . . "Male"@en . . . . . . "Deceased"@en . . . "Season 1 Episode 2: \"Surf N Turf\""@en .