The Circle of Blood by Alane Ferguson

This is Alane Ferguson's third forensic mystery featuring Cameryn Mahoney. Cameryn is an assistant county coroner in Silverton, Colorado working for her father. Cameryn plans to be a forensic scientist when she graduates from high school. Cameryn and her mother, who has just recently returned to Silverton after a long absence, are getting to know one another and working on building a relationship when a mysterious hitch-hiker is found dead. The last person to see the hitch-hiker alive was Cameryn's mom, Hannah, who gave the young lady a lift. As evidence is uncovered, Cameryn must decide whether to share information that may incriminate her mother.