Dallas Chief: We Believe Deaths in Minnesota and Louisiana ‘Sparked’ Shooter’s Delusions

TAPPER: "So, he had been planning something before the rally, and maybe even before the deaths in Louisiana and Minnesota?"
BROWN: "We believe so. And we believe that the deaths in Minnesota and the deaths in Louisiana just sparked his delusion to fast-track his plans and saw the protest in Dallas as an opportunity to begin wreaking havoc on our officers."