Lucas calmly sat down and began arranging his thoughts.
First, the Stygian Abyss had clearly planned this scene. They had arranged for their members to use a modified SS vestige during the attack, and planned to purposely get caught by the security camera and satellites active at the time. After browsing through the forums and news networks, Lucas found at least four similar videos, so it wasn't a fluke.
This was probably the Stygian Abyss' retaliation against Lucas for killing Ramirez and interrupting their plans.
Secondly, a malicious party made use of this video evidence to begin attacking Lucas and the store. They didn't care whether it was false or real, and controlled many media networks to report on it, ensuring that all posts made Lucas appear to be a spy.