He's not exactly a poster child but apparently rapper and heavy metal singer Tracy Marrow (stage name Ice-T) is a supporter of gun rights.
In an interview with a British television channel, Marrow stood up for the Second Amendment saying that the right to bear arms is "the last form of defense against tyranny" and not merely for hunting. Video and transcript below.
Ultimately, Audrey Hale's profession had nothing to do with her death but the twist allowed writers to get in a few shots against pro-life activists (calling them "fanatical nuts") and portray the doctor as an unsung hero committed to her job.
Detectives John Munch and Tutuola, played by Richard Belzer and Ice-T, questioned the lead suspect, Dalton Rindell, about his beliefs regarding abortion.
"Which are you, pro-choice or no choice?" asked Tutuola.