Complete story — includes the ending
An IED hidden in a soccer ball kills a man; this is similar to a string of explosions from half a decade earlier. While Sherlock and Joan are briefed at the scene, Sherlock notices someone suspicious looking and chases him. Sherlock is knocked down by a car, but the suspect leaves a hand print and is found in the system. It turns out he was in prison for vehicular manslaughter. Sherlock likes him as the suspect, but some things do not add up. Joan asks Shinwell Johnson, one of her last patients as a surgeon and also someone who was in the same prison as the suspect, for information. He points her to the suspect's best friend in prison. Eventually, this friend admits to being responsible for the earlier bombings. Sherlock figures out that they were working together in a scheme to help the first suspect, a real estate developer, win a very valuable contract by targeting the neighborhood of a rival's site for a massive new entertainment center. Sherlock encourages Joan to help Shinwell. Shinwell hides a gun when Joan knocks on his door.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, List of Elementary episodes. HTML formatting and reference markers removed. · Content license