The stepfather of the teen accused in was arrested on drug and firearm charges, according to police.
Andrew E. Piper of the 8500 block of Bradshaw Road in Kingsville was charged with marijuana possession and illegal firearm possession. He is currently free on $500,000 bond. A preliminary hearing in the case is scheduled for Dec. 3.
Piper was arrested Monday during a police search of the family's Kingsville home that was related to the shooting earlier that day. Piper is not charged in connection to the shooting allegedly carried out by his stepson, 15-year-old Robert Wayne Gladden Jr. Police said the weapon that was used in the school incident came from the Middle River home where Gladden's father lives.
Police say Gladden, Piper's stepson, entered the Perry Hall High cafeteria and shot one 17-year-old student in the back before being subdued by school staff. He is charged with attempted first-degree murder and first-degree assault and is currently being held without bail at the Baltimore County Detention Center.
Patch Associate Regional Editor Bryan P. Sears contributed to this article.
The original version of this article misstated Piper's bond.