Federal prosecutors have rested their case in the trial of a man accused of plotting to blow up a bridge over the Cuayhoga Valley National Park. The final prosecution witness, FBI lead investigator Ryan Taylor, identified 23-year-old Joshua Stafford as a key member of the conspiracy. Stafford, who is representing himself, tried to downplay his role during cross-examination. Stafford is expected to testify on his own behalf today. No bomb went off and no one was injured in the plot. Four co-defendants previously pleaded guilty.