The investigation begins when collapses and dies during a mock trial competition. While the death initially appears to be from natural causes (convulsions), Maura Isles discovers a puncture wound indicating she was injected with Ritalin. Key elements related to this "piece" and the case include:
: The judge had discovered that a private prison, to which she had been sending young offenders for rehabilitation, was actually a dangerous facility for "hard-core gangbangers". [S4E11] Judge, Jury and Executioner
Aside from the murder case, this episode also features a subplot where discovers her mother, Angela , owes $27,000 in back taxes due to her father's negligence. The investigation begins when collapses and dies during
"Rizzoli & Isles" Judge, Jury and Executioner (TV Episode 2013) Jury and Executioner (TV Episode 2013)