The Burning Boy (The Vincent Swan Mysteries) by Nicola White

A dead police officer. A murder that no-one wants to solve... Dublin, 1986.

The murder of an off-duty officer in Phoenix Park should have brought down the full power of the Dublin police force. But Kieran Lynch was found in a notorious gay cruising ground, so even as the press revels in the scandal, some of the Murder Squad are reluctant to investigate.

Only Detectives Vincent Swan and Gina Considine are determined to search out the difficult truth, walking the streets of nighttime Dublin to find Kieran's lovers and friends.