Grant, who’s 57, is serving a 70-year prison term for the slaying of Janet Hagerthy at her home in Farmingdale in November 2004. The retired nurse was choked, beaten and stabbed to death following an argument over how to start a snowblower.
In seeking a new trial, Grant maintained that detectives failed to honor his Miranda rights allowing him to remain silent or be represented by a lawyer.
The Supreme Judicial Court disagreed, noting that police immediately ceased their questioning when the suspect invoked his Miranda rights the day after the slaying. But when detectives returned to the hospital the following day, Grant was given fresh Miranda warnings and allowed the interview to go on.