Overview

• Lang, 34, appeared in a Florida court for the first time after extradition from Ukraine.
• He is accused of killing a Florida couple to fund a mercenary trip to Venezuela.
• Lang and accomplice Alex Zwiefelhofer allegedly planned to fight in multiple global conflicts.
• Zwiefelhofer was convicted in March and awaits sentencing in August.
• Lang also faces charges in North Carolina and Arizona for passport fraud and identity theft.