Why is Trent is interested in the case?

As the novel unfolds, he reveals that his wife died from complications of a car accident. The night before she died, they had a fight so their last words to each other were in anger.

Trent wants to break free from the police department and work for himself. He hopes to give seminars and workshops around the country training police officers on interrogation tactics and techniques. Trent has been biding his time waiting for a high-profile case to go out on his own. The Alicia Bartlett case seems to be exactly what he is waiting for, so when Braxton calls Trent to ask for his help in the case, Trent accepts the offer.