Elizabeth Laposata

Elizabeth Laposata testified remotely as a defense forensic pathologist on Day 15, interpreting medical records and photographs of the children and Lindsay Clancy. She described bruises consistent with ordinary childhood activity and attributed particular marks on Callan's head to hospital monitoring devices. For Clancy, she described cutting wounds, substantial bleeding, and hesitation marks she associated with suicide attempts. The judge sustained an objection to a direct question asking whether Clancy's injuries were consistent with trying to kill herself.

Using illustrations admitted as Exhibit 281 over renewed Commonwealth objections, Laposata reconstructed a headfirst fall. She interpreted the C1 burst fracture as evidence of a headfirst landing and linked spinal cord damage to thoracic compression and displacement. She also described blood loss, cardiac arrest, and hypothermia, attributing the low temperature to cold exposure compounded by impaired temperature regulation after the spinal cord injury.

On cross-examination, Jennifer Sprague challenged the reconstruction through the absence of skull fracture, brain injury, and apparent exterior head injury. Laposata acknowledged that she had not treated or personally examined Clancy, but maintained that bruising lay beneath the hair and that force could reach the cervical spine without fracturing the skull. Hospital head photographs were admitted as Exhibit 282. Sprague also tested her strangulation estimates against earlier testimony. Laposata gave estimates ranging from five to 10 seconds to possibly 20 seconds before unconsciousness, while distinguishing manual strangulation from ligature compression.

The later questioning focused on the difference between losing consciousness and dying, and on what maintained pressure. On redirect, Laposata estimated unconsciousness within four to 10 seconds with resistance bands. She agreed on recross that pressure had to continue for several minutes afterward to cause death, then explained that elastic loops could maintain that compression without a person continuously applying manual pressure. Sprague challenged whether unknotted bands would stay in place and demonstrated an arrangement coming apart. Laposata acknowledged the demonstration's result but maintained her explanation of repeated, secure wrapping supported by the neck skin findings.