Jan Houghton Lindsey 
Last Renegade 

In 1956, the Yakima Indian Reservation in Central Washington is thrown into turmoil when the son of the most powerful White-man on the Reservation is found dead in his family’s swimming pool. Derek Abrams, a popular Indian schoolteacher and former All-American football star, is accused of his murder, but fearing he won’t get a fair trial, he flees on horseback into the foothills of Mt. Adams. A posse goes after him, but one man on the posse does not plan for Derek to be brought back alive.