Wedding Bel blues / Maggie McConnon.

Enhanced descriptions from Syndetics:

Are they tying the knot?

Belfast McGrath has spent the last fifteen years avoiding her big, bustling, brash Irish family. But when her five-star culinary career goes up in flames, she retreats to Foster's Landing--where she's immediately tapped as her cousin Caleigh's maid-of-honor. It's a perfect recipe for disaster...especially when Bel learns that the wedding preparations included Caleigh having one last one-night stand.

Or the noose?

When Caleigh's lover plunges from the second-floor balcony during the reception, Bel can't help but think his death was no accident. Soon Detective Kevin Hanson, who just happens to be Bel's long-ago love, arrives on the scene--looking hotter than ever. Heartbreak and homicide hardly help Bel to feel more at home, but if she is going to make a new beginning for herself, including putting the past behind her, she must first steer clear of a cold-hearted killer.