When Claire walks out of the police department at the end of the episode, the camera dolly and the camera crew's feet are reflected in the black marble portion of the building's wall.
Unless the killer took the time to seal up the trunk with plastic and make it one hundred percent air tight putting the dead baby's body in a trunk and then storing the trunk in a closet would have been a lousy way to hide the body. Within a week the odor from the decomposing body would fill the entire house, and there is no way to mask or get rid of the odor of decomposing flesh, it gets absorbed into carpet, fabric and even wood.
Claire said she was 14 when Lisa died; her lawyer said she was 15.
The M.E. says the child was 20-24 months old at time of death, but the ADA says "two-and-a-half-year-old-child" at the trial.