More than a week after the body of Judge Sheila Abdus-Salaam was found floating in the Hudson River, the police in New York City were still piecing together her last moments, trying to determine how her life came to an end.

The night before her body was discovered, video cameras recorded Judge Abdus-Salaam, a widely respected New York State Court of Appeals jurist, walking around for hours in Riverbank State Park in Upper Manhattan, according to several people briefed on the investigation into her death.

Surveillance footage shows the judge leaving her home in Harlem on the evening of April 11, wearing the same clothes that she wore when she was found the next day, according to the people, who spoke on condition of anonymity to discuss a continuing investigation. Judge Abdus-Salaam then made her way to the park; the cameras last captured her standing near the water’s edge.

The medical examiner’s office has not made a determination on what caused the death of Judge Abdus-Salaam, who was the first black woman to serve on the Court of Appeals, the state’s highest court. Her body was found on the afternoon of April 12 in shallow water along the shore of the Hudson River near West 132nd Street.