Cause for Murder — Betty Sullivan La Pierre

When it's discovered Burke Parker might have been poisoned, the suspicion of guilt falls on his wife Lilly, daughter, Maryann and Maduk, the Indian who is Maryann's biological father. Sam and Richard face danger when they become privy to data collected by Hawkman, along with information they've discovered while fixing up the Parker house. Hawkman follows clues he's received and finds the investigation leading him in all directions as he deals with an Indian man who's killed once before, and an abused daughter and wife, who all have excellent motives for murder.