Tuesday’s bomb scare near a Baltimore County school apparently stemmed from a dispute between a man and his mother-in-law who lives in Mt. Airy. Joseph Vickery faces explosives-related charges, his wife Kristen was arrested at a Woodlawn hotel on drug charges. Court documents indicate that Kristen Vickery sent her mother pictures of bomb-making materials and the mother called authorities. Police tracked Joseph Vickery’s location through his cell phone. Police say Vickery was working as a contractor near Pine Grove Middle School in Carney and a homemade bomb was found in his pickup. Both Vickerys remain held without bond at the Baltimore County Detention Center.