Evergreen Valley Murder — Alec Peche

A killer with a fetish for murdering people riding on parade floats...In book four of the Damien Green series, Damien confronts criminals all around him and the women he cares about. He's juggling two threats while helping solve a cold case. Ariana, his girlfriend, has a startup company that has garnered the attention of the North Koreans. Why? What could a small startup have, that North Korea wants? Damian's ward, Hermione, has a summer job at his company, working on a smartphone application. Trouble seems to follow the teenager everywhere including into her new summer job. Retired detective Natalie Severino thinks she has a simple solution to find the killer involved in a cold case. A float volunteer in costume is hit with a poisonous dart and dies during the parade. Her idea of how Damien can help solve her case bears far more evidence than she ever expected - a serial killer with a fetish for murdering float volunteers all over the globe.