Collar-bomb defendant takes stand in own defense

ERIE, Pa. (AP) — An Erie, Pa., woman is on the witness stand, defending herself from charges that she helped devise a bank robbery plot in which a pizza delivery driver was eventually killed by a collar bomb.

Sixty-one-year-old Marjorie Diehl-Armstrong is expected to be the last witness for the defense in the second week of her trial on armed bank robbery and other charges in the August 2003 robbery that killed pizza deliveryman Brian Wells.

Prosecutors say he was in on the plot, but nonetheless forced to wear the collar bomb which exploded, killing him, shortly after he was arrested after the robbery.