A Tap on the Window by Linwood Barclay

This is the story of a young dad whose son committed suicide right before the story begins.  He is bent on trying to find out what happened.  He is a bit of a pest as he tries to elicit information from some of his son's friends. Working as a private investigator has its perks and Cal uses everything he can muster to find out the truth.

One rainy night, while driving home, he picks up a teenage girl who says she knew his son.  The girl needs a ride and Cal agrees, hoping to get more information about his son.   The ride is short and things get complicated..  Things just don't seem perfect in the small sleepy town and Cal finds himself drawn into another mystery.

Linwood Barclay's books as a rule rank right up there with James Grippando and Lisa Gardner.  This story was a bit lukewarm but I did read it till the end.

Ladybookbug!