Burnout: the mystery of Space Shuttle STS-281

Burnout is a SF mystery about a Space Shuttle disaster that turns out to be no accident. As the true scope of the disaster is uncovered by the principle investigators, "Crash" Murphy and Dr. Mike Anders, they find themselves running for their lives as friends, lovers and co-workers involved in the investigation perish around them. What happened to the Shuttle? Who is responsible and why? Why is the government calling it an accident? Why is someone willing to kill to keep it a secret? And how big is the conspiracy?