: The episode provides background on new CSI Beau Finado , revealing he previously worked in the defense industry creating high-octane fuels. This expertise allows him to bridge the gap between forensic science and the military technology used in the crime.
The investigation shifts from chemistry to physics when and Beau Finado discover a pattern of malfunctioning electronics around the scene. They eventually uncover a directed-energy weapon (DEW) hidden in the backyard, which had been used to simulate the symptoms of "Havana Syndrome" on the attendees. Key Subplots and Character Arcs CSI: Vegas subtitles English S02E05
The central investigation begins when dozens of guests at a university science department fundraiser suddenly fall ill, resulting in three deaths. Initial suspicions of chemical poisoning lead the team to wear hazmat suits, but traditional toxicology results from Coroner Sonya prove inconclusive. : The episode provides background on new CSI