Death on the Beach by Steph Broadribb (Paperback Book)

Did she jump—or was she pushed? The Retired Detectives have a theory. Now they just need the evidence… The brand-new Shimmering Sands retirement community is a beachfront paradise—until realtor Jessie Beckton plunges to her death from the penthouse suite she’s selling. When the cops rule out foul play, the Retired Detectives agree to step in. They’re certain Jessie was murdered—but how can they prove it when the apartment was locked from the inside? As the gang pursue their investigation, a host of potential suspects emerge who all have secrets to hide. But just as they seem to be closing in on a culprit, a shocking second murder sends them back to square one.