Overview

• Prosecutors played video clips that introduced jurors to Robert Brooks and the Marcy facility layout on the first full day of testimony.
• The alleged fatal infirmary beating was captured in silent, passively recorded body‑camera video from four guards, according to the prosecution.
• An autopsy ruled Brooks’ death a homicide caused by compression of the neck and multiple blunt‑impact injuries, with extensive bruising and a broken nasal bone.
• Former officers Mathew Galliher, Nicholas Kieffer and David Kingsley face second‑degree murder and first‑degree manslaughter charges, with potential sentences of 25 years to life.
• Defense lawyers say the state cannot prove malice or each defendant’s role, as six other guards have pleaded guilty and three additional employees are cooperating, with another trial set for January.