Family and friends of late Houston Instagram star Alexis Sharkey are certain foul play was involved in her death. Sharkey's mother, Stacey Robinault, says she believes in her gut the 26-year-old was murdered over Thanksgiving weekend but doesn't understand why. A friend claimed to ABC13 Sharkey expressed fear for her life during a recent trip to West Texas. Sharkey's naked body was discovered Saturday on the side of a west Houston road. Police say there were no visible injuries.