[7] In the 1980s, Murphy turned pro the day after graduating from Rutger's University in New Brunswick, NJ, home to Tom Groholski's ramp.
[11] Murphy and Wounded Knee Skateboards, with Pourier and the Stronghold Society, lead a successful skatepark campaign for the Wounded Knee 4-Directions Skatepark on the Pine Ridge reservation in South Dakota.
[7] Murphy and Andy Kessler started the Wounded Knee Skateboard Manufacturing and Propaganda company in 1998.
[7] Additionally, Murphy and Kessler envisioned that the company would one day give back to the Lakota people, the tribe massacred at Wounded Knee, by building skateboard parks for their youth.
[7] Murphy partnered with Todd Harder in founding Nibwaakaawin (Wisdom), a Native American nonprofit whose mission is to "foster creativity, build courage, enable cultural identity and pride, and promote nonviolent and healthy physical activity through skateboarding.