The gunman reportedly opened fire without warning after a Harford County sheriff's deputy spoke with him at a Panera Bread in Abingdon, Md.
Phil Helsel, NBC News: Nation
Wed, 02/10/2016 - 7:56pm
The gunman reportedly opened fire without warning after a Harford County sheriff's deputy spoke with him at a Panera Bread in Abingdon, Md.