The perpetrator was the family's eldest son, Nicholas, who is now serving multiple life sentences for the murder of his parents and brothers.
Nicholas Waggoner Browning (born February 9, 1992) is an American multiple murderer from the Baltimore suburb of Cockeysville, Maryland.
He is currently serving two life sentences for murdering his family—his parents, John and Tamara Browning, and his two younger brothers, Gregory, 13, and Benjamin, 11—in February 2008, when he was 15 years old.
He had two younger brothers, Benjamin and Gregory, and was an honor student and Boy Scout who attended Dulaney High School in nearby Timonium, where he played varsity golf and lacrosse.
Although Nicholas alleged he had suffered abuse from his father, prosecutors argued that he murdered his parents "because he didn't want anyone telling him what to do" and his brothers so that he would not be required to share his inheritance.