1.   Before they could reach a second fence, a tower guard opened fire.

2.   He looked like a tower guard up there or a border patrol agent.

3.   Six others hiding on a rooftop surrender when tower guards open fire on them.

4.   A retired baker, Schiffer has said he worked in the camps as a tower guard, but he denies he took part in any atrocities.

5.   An inmate dressed in stolen civilian clothes then tricked the tower guard into letting him and three other inmates inside, the memo said.