SPEED TRAP (4) by Patricia Davids: When Judy Bowen dies in a car wreck, suspicion falls on her ex-husband, Garrett. Sheriff Mandy Scott, who rescued Judy's 4-month-old son, Colin, from the burning car, believes Garrett is innocent, but she's reluctant to exonerate him completely. It turns out that Garrett may be Colin's father, and although he's urged to place him up for adoption, he's not sure he wants to give up a baby who might be his. As Mandy hunts for a murderer, she also falls in love, not only with Colin, but with Garrett as well. Davids' fine mystery focuses more on relationships than suspense, but readers won't mind.