Complete story — includes the ending
SBK gang members at an outdoor party plan to kill Joan when Mara Tres gang members ambush and kill them, two women, and two children; ten in all. The NYPD prepares for a gang war. Mara Tres' leader Julio "Halcon" Zelaya shows Sherlock the murdered body of his sister Carmen, with a video of her reading a message implicating SBK. But Carmen's roommate Tanya, who witnessed her abduction, doubts the kidnapper, who lacked tattoos, was a gang member. In return for immunity, Tyus provides ADA Nelson Lewis information on SBK, including every gang hit, and admitting he poisoned Bonzi, but claiming Duane (who does have tattoos) killed Carmen. Despite Joan's insistence, Lewis has no interest in prosecuting Tyus. She meets secretly with Halcon to reveal Carmen's killer is in witness protection, but if Halcon returns Carmen's corpse for autopsy, she'll assure Tyus' imprisonment, where Mara Tres can exact revenge. On the video, Carmen's lip was bloodied, and her restraints changed; she had bitten Tyus, and blood in her throat matched Tyus' DNA. Having perjured himself, his immunity deal is voided. At a health clinic, Sherlock imagines his mother May before undergoing an MRI.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, List of Elementary episodes. HTML formatting and reference markers removed. · Content license