Vietnam-era radical Katherine Ann Power has withdrawn her request for parole in the killing of a Boston police officer 28 years ago, the officer's family said.

After serving 4 1/2 years of an 8- to 12-year sentence for her role in the 1970 murder of Walter Schroeder during a bank robbery, Power went before a parole board Thursday night to request her release.But Power, who spent more than two decades as a fugitive, withdrew her request at the end of a three-hour hearing, according to Clare Schroeder, daughter of the slain officer.

"I believe she did the right thing," Schroeder said after the hearing. "I and my family are all relieved."

An expressionless Power, in handcuffs and leg shackles, was escorted out of the building immediately after the hearing.

A parole board representative could not be reached for comment. Power's attorney, James Doyle, who was not in the room during the hearing, could not immediately confirm that his client had withdrawn her request.

"She accomplished what she really wanted to do," Doyle said. "She wanted to accept responsibility and express deep remorse."

Doyle said Power would likely make another request for parole. She will be eligible for another hearing next year.

Power, 48, and four other anti-Vietnam War radicals robbed a Boston bank in September 1970. During the robbery, Power, then a Brandeis University student, waited several blocks away in the "switch car" used for the getaway.

The heist didn't go as planned, and Schroeder - a father of nine - was shot to death.