acting alone, if he had co-conspirators and to a-number 1 know the motive of why this person committed this horrible crime. also to figure out if there is another potential plot that could be happening. that's why the entire country's airports are on lockdown right now in anticipation of a potential copycat. >> we're seeing new video coming in. obviously anyone and every within even if you work at the airport, they want to know exactly what you're doing there and what flight you were on and what capacity at the airport you work. we're getting a few more details on the shooter. show that santio had minor brushes with the law, coming from the "miami herald," when he lived in alaska including $1,000 fine for driving without insurance and another infraction for driving with broken taillights.