A guilty plea is expected today from a Massachusetts man charged with plotting to bomb the Pentagon and Capitol.

Rezwan Ferdais, 27, is accused of plotting to fly explosives-laden remote-controlled model planes into the two buildings.

Ferdais was arrested in September after undercover federal agents delivered weapons and bomb materials to his house. He allegedly requested grenades, machine guns, and 24 pounds of explosives.

The prosecution described him as a "ticking time bomb," while his defense attorneys call him "mentally troubled," a man with a "completely unrealistic fantasy."

Ferdais has had run-ins with the law before, Fox News reported not long after his arrest last fall.

According to the report, an old message on his band's website (he was its original drummer) said Ferdais "had moved on to become a devout spiritual practitioner."