Last Landing by Edie James

He’s brash, unpredictable, and seriously over-confident. She’s brilliant, thorough, and way too interested in following the rules.
Former SEAL and NCIS investigator Dale Bonham and FBI agent Tamra Bosch have a long history of butting heads, but when a killer from their past resurfaces, they’ll have to figure out how to play nice…or die.
It’ll take everything these two hard-headed investigators have to give—and the resources of Dale’s teammates at Knight Tactical Protection—to dig through the taunts and clues. The killer has made it clear, this time, it’s personal.