The Way of Us by Patricia Logan

Together for months now, Luca Price and ATF special agent Kane Delancey, are navigating their new reality. They are in love and…
…in horrible danger.
A serial killer is using bombs to kill young gay men in Los Angeles. He doesn’t care about collateral damage as long as his chosen victim dies a gruesome death in the process. He must be stopped, and all the letter agencies are on the job. Kane is doing his best to find the murderer and running up against one roadblock after another.
Luca has drama of his own and when he’s unexpectedly called away to Miami, he feels nothing but panic. Kane holds his hand to help him through this challenging time, but nothing could have prepared him for more shocking news. Feeling betrayed, angry, and dreadfully afraid, Luca has only one person he can count on. Thankfully, Kane is his constant support. They must get his family to LA where they’ll be safe.
Making a deal with the Devil might be their only hope…