A police official says investigators haven't determined why a Maryland man fatally shot his parents at their home and gunned down two other people at a convenience store before setting fire to his apartment and killing himselfInvestigators have “no idea” why a Maryland man fatally shot his parents at their home and gunned down two other people at a convenience store before setting fire to his apartment and killing himself, a police official said Monday. “As to why this occurred, we have no idea yet," Davis said at a news conference. Green then entered the store and fatally shot a customer, 43-year-old Silvesta Daye, near a cash register before wounding a store employee. Davis said the employee, a 22-year-old man, was in stable condition at a hospital on Monday. After the shooting, police said, Green returned to his nearby home and set fire to his apartment before shooting himself.

Source: ABC News March 29, 2021 16:26 UTC