Evidence markers on seen on a sidewalk in front of Dallas police headquarters as members of the FBI evidence response team, rear, investigate an intersection in front of the building Saturday June 13, 2015, in Dallas. A police sniper shot a cornered suspect in an overnight attack on the Dallas Police Department's headquarters, and authorities were checking Saturday to see if he was alive or dead. (AP Photo/Tony Gutierrez)
Evidence markers on seen on a sidewalk in front of Dallas police headquarters as members of the FBI evidence response team, rear, investigate an intersection in front of the building Saturday June 13, 2015, in Dallas. A police sniper shot a cornered suspect in an overnight attack on the Dallas Police Department's headquarters, and authorities were checking Saturday to see if he was alive or dead. (AP Photo/Tony Gutierrez) Tony Gutierrez AP
Evidence markers on seen on a sidewalk in front of Dallas police headquarters as members of the FBI evidence response team, rear, investigate an intersection in front of the building Saturday June 13, 2015, in Dallas. A police sniper shot a cornered suspect in an overnight attack on the Dallas Police Department's headquarters, and authorities were checking Saturday to see if he was alive or dead. (AP Photo/Tony Gutierrez) Tony Gutierrez AP

Suspect in attack on Dallas police headquarters confirmed dead

June 13, 2015 06:16 AM