Elementary S1E3 Sherlock and Adam Kemper in the park

CBS Elementary S1E3: Child Predator "Holmes and Watson consult on a child abduction case involving a serial killer who is nicknamed "The Balloon Man" because he leaves a signature batch of balloons at each of his crime scenes." Sherlock finds Adam Kemper (Johnny Simmons) at the park, and tells him that his immunity deal does not cover his murder of the Balloon Man's 5th victim, as he was in the hospital with a back injury.