US military veteran believed to be lone gunman in Dallas police ambush
The ambush marked the highest death toll for US police in the line duty from a single event since the September 11, 2001, attacks.
Jul 09, 2016, 08:24 AM IST
The ambush marked the highest death toll for US police in the line duty from a single event since the September 11, 2001, attacks.
Jul 09, 2016, 08:24 AM IST