In what police described as a random attack, Paul Schrum, a 62-year-old medical supplies salesman from Pikesville, was shot dead while watching a movie at Loews Valley Center 9 in Owings Mills. About 20 minutes into the film, police said, the gunman stood, told everyone to get on the floor and fired four shots. [snip] The suspect is a 24-year-old man, a 2000 graduate of Mount Hebron High School in Howard County and a 2005 graduate of Loyola College, where he majored in biology. Mujtaba Rabbani Jabbar's family home is a house valued at more than $1 million in one...