Conquistador. Witch's Curse, #1

Theron Gabriel was the reincarnation of a 17th Century Spanish Conquistador killed by a powerful witch. He remembers everything about his past life and he now uses his position as a police officer to track down the descendants of the witch that cursed and killed him in the past. He intends to use the powers of the witch's descendants to help him solve crimes. His revenge was temporarily set aside when he discovers that someone has been killing witches and absorbing their powers.