Karen Read pleaded not guilty to murder charges in the death of Boston police officer John O’Keefe and is facing a retrial after a jury was unable to reach a verdict last year.

The dense snow and blizzard-like conditions outside the Massachusetts home are gone. But the mystery of who may have killed Boston Police Officer John O’Keefe on a frigid night in Canton lingers as jurors visited the house near where his body was found.

Friday's jury view came a day after Judge Beverly Cannone cut testimony short over "confusion" with witnesses.