Defense seeks more information in case of nanny charged in death of Cambridge baby

WOBURN — A lawyer for Aisling Brady McCarthy, the nanny accused of fatally beating a 1-year-old Cambridge girl in her care, asked a judge today to order prosecutors to hand over information to clarify the charges against McCarthy.

“It is very unclear what the allegations are against my client,’’ defense attorney Melinda Thompson said in Middlesex Superior Court. “As we are preparing the defense, I don’t know what the charges [are].”

Thompson asked Judge S. Jane Haggerty to order prosecutors to disclose to the defense evidence they’ve collected, including McCarthy’s diary, phone records, and data from the hard drive of the computer used by the family of the victim, Rhema Sabir.

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Thompson also requested the child’s medical records since birth, results of tests conducted during her autopsy, and any medical analysis of previous bone fractures on Sabir’s body.

“These are all missing pieces,’’ she said.

McCarthy is accused of killing Rhema in January at the child’s home. Rhema was found unresponsive in her crib on Jan. 14, and died two days later. McCarthy was arrested a few days after Rhema’s death, and in April was indicted on first-degree murder charges.

Authorities have said Rehma’s injuries were consistent with violent shaking and multiple blows to the head. Prosecutors argued that the child died from massive head injuries while in McCarthy’s exclusive care. But Thompson has countered that her client never harmed the girl.

Thompson is also seeking, among other things, all police reports, written communications between prosecutors and the medical examiner, and the identities of everyone interviewed in the case.

Assistant Middlesex District Attorney Patrick Fitzgerald argued that some of Thompson’s requests were simply too broad to accommodate – such as her demand for every single communication between prosecutors and investigators. But he promised to turn over whatever information he has as soon as possible.

Prosecutors and defense attorneys exchange information before trials in a legal process known as discovery.

The judge will hold another hearing in the case on Dec. 17.