Mission: Murder - Ryker Bartley Mysteries, #1

A brilliant detective faces off against an intelligent killer. This killer murders his victims on certain days and dates of the year. Detective Ryker Bartley, with his newly acquired smarts, spots the pattern. Then the chase across Texas begins. Murders continue as Ryker and his team follow leads, trying to beat the killer at his own game. When the police get close, the killer goes after those who are on his trail.
Ryker suffered one death during the investigation. Can he survive losing another?