In 1983, when Busch was 20, he was involved in a car accident in which his friend and passenger, Michele Frederick, 22, died. According to published reports at the time, Busch, who was then a sophomore at the University of Arizona, had been driving a black Corvette 20 miles above the posted speed limit when the car spun out of control.
Busch left the scene and cops later found him with a severe head wound at his home in Tucson. He was never charged due to lack of evidence.
When asked about the accident, Busch told Fortune that, "I had a bad head injury. I don't remember that part of my life."
Then just a few years later, in 1985, Busch had another run-in with the law. He was arrested after leading police on a high-speed car chase in St. Louis, driving his father's Mercedes, according to the Wall Street Journal.
He was put on trial on assault charges for attempting to run over two police officers, but was acquitted of by a St. Louis jury.
As for Martin, she appears to have been an aspiring model, with profiles on modeling websites called istudio.com and onemodelplace.com. She had last logged on to onemodelplace.com at the beginning of October.
Martin wrote on her istudio.com profile that she works with children as an art therapist but is interested in getting into modeling.
"Aside from my long-term goal, I have been in pageants for several years now and I feel I want to do something more; MODELING!" she wrote. "I really would like to do beer advertising!"
She also wrote that she had been employed at Hooters for several years and had competed in several swimsuit competitions.
According to the Post-Dispatch, Martin had been marred to 45-year-old Dr. Kevin Martin until 2009, when they separated. The couple shared custody of their son, who is now 8.