Complete story — includes the ending
Shinwell's back-stabbing murder angers Joan; Sherlock determines to finish taking down Shinwell's former gang, SBK. Detective Guzman indicates SBK's leader Bonzi Folsom rarely leaves his guarded apartment. No one knows how he communicates with underlings. Bonzi's estranged half-brother, Tyus Wilcox seems like a legitimate businessman. Hoping to end NYPD's investigation, Bonzi reveals Shinwell's killer is Tall Boy, who willingly accepts his arrest and imprisonment. Sherlock notices Bonzi's Enigma machine, and Joan cracks his window-blind signals by which he communicates his cipher key to unscramble online instructions. But NYPD's raid on SBK's next drug deal fails; Bonzi deletes his social media, precluding future stings. From Bonzi's past communications, they link contract killings of rival company personnel, tying Tyus to SBK. Confronted by Sherlock and Joan, Tyus refutes that he's SBK's real leader, but reacts haptically to Carol Logan's murder. Connecting Carol to Bonzi, they obtain a DNA warrant, but find Bonzi in a vegetative state, having snorted bleach-laced cocaine. They suspect Tyus somehow supplied it to silence Bonzi. Throughout, Sherlock is distracted by a separate strangulation case, in which in his mind manifests his mother, May.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, List of Elementary episodes. HTML formatting and reference markers removed. · Content license