Mark Zeisler

When a beautiful young woman is murdered, Holmes and Watson investigate her ties to a billionaire CEO. Meanwhile, Mycroft makes a case for Sherlock to move back to London. William Sadler, Margaret Colin, and Rhys Ifans guest stars.

The teenage son of a former friend hires her to defend him in a murder case, Alicia makes a difficult journey back to her old life.

When an assassination attempt is made on Frank's life, Danny goes on a hunt to track down the shooter and find out if the attack was random or by someone with a vendetta against the Commissioner.

As Christmas approaches, Bull is amused when he meets a 9-year-old girl (Annabelle Wachtel) who wants to hire him to help her divorce her parents, but he's shocked when a judge appoints him her temporary guardian. Also, Marissa discovers disturbing information about her boyfriend, Kyle (Gary Wilmes).

There's a shooting at City Hall; Councilman Clarence Clark is killed and a water inspector, Ron Tabachnik, is injured. It's assumed Clark was the target, so Briscoe and Green start their investigation by talking to the security guards. They suspect the shooter was a "regular" because "regulars" were allowed to bypass security, and the shooter did just that. The Detectives believe Clark's most recent opponent, Sonny Rodino, could be the shooter, but he had an alibi which checks out. Then they realize there was a meeting taking place that very day, consisting of people upset about their water bills, and they now think Tabachnik was the target.