raymond clark entered that room and stayed in that room for approximately 46 minutes. narrator: there was nothing particularly unusual about this, but since it appeared clark might have been the last person to see annie alive, he was brought in for questioning. raymond clark was very cooperative in the process. [ fire alarm sounding ] narrator: but now investigators were taking a closer look at raymond clark. and in the security footage, they found something haunting on the day annie was killed. after the fire alarm, when every employee of the amistad building was evacuated, clark's behavior seemed highly suspicious. we actually saw ray clark exit the building, go across the street, and sit on a wall, and he looked distraught. he actually was sitting there and put his head down on his hands, and it's all captured on video. his face is actually in his hands and he's kneeling forward, and he actually looks like he almost passes out and falls into the street. so, he's definitely under a lot of stress in that video. narrator: but what was raymond clark stressed out about? a