Dead Connection by Alafair Burke

NYPD detective Ellie Hatcher has been working robbery cases when she's asked to assist on a homicide investigation. Someone has been murdering women who all seem to have a connection to an online dating site. Ellie is put on the case by detective Flann McIlroy because he feels that her past--being the daughter of a Kansas policeman who died while trying to catch a serial killer--could be an asset with the press. Then an older murder pops up that is related, but the victim was not an online dater. Ellie and McIlroy try and trace the killer's movements through the computer, but he always seems one step ahead of them. Will they succeed in finding the connection between all the cases and find the murderer before he possibly kills again? In Dead Connection, Burke departs from her Samantha Kincaid series to write about Ellie Hatcher. The book starts off promisingly and I do like the character of Ellie, but part of the way through, the book loses it focus on the main plot. I would try another book featuring this character, though. City of Fire by Robert Ellis is similar.