Ghostly Death - E.M. Leya

When teenagers start dying around town, it's up to Detective Angus Young to figure out if the cases are connected and who would want them dead. Lance is one of the city's medical examiners and has a talent he doesn't share with many people — he sees ghosts. Helping his boyfriend figure out who wants these kids dead just became his number one job. He can see some of their ghosts, and one of them just might be the key to breaking this case wide open.