FBI profiler Mark Safarik interviews Alan Jacobson about the Karen Vail novels, where the idea behind Vail came from, and more. Alan then turns the tables and interviews Mark on his career catching some of the deadliest killers—and why he feels it’s so important for Alan to “get it right” when writing his novels. Watch part 1 below:

Check out Alan’s other book trailers and author interviews, including four with FBI profiler Mark Safarik, by clicking here.