AP reports on the twisted nursery rhyme hummed by an alleged jihadist in NYC and caught on tape:

Jurors at the federal trial of a Pakistani immigrant accused of plotting to bomb a subway station heard secret recordings on Tuesday of his angry _ and sometimes strange _ rants against America.

On the tapes, recorded by a police informant wearing a wire, Shahwar Matin Siraj muses about trying to inflict harm on the U.S. economy by bombing a nuclear plant or by assassinating captains of industry.

In one conversation with informant Osama Eldawoody, Siraj singles out Microsoft Corp. founder Bill Gates as someone “you have to kill.” He also can be overheard chuckling as he recalls the Sept. 11 attack on the World Trade Center and singing, “Brooklyn Bridge is falling down, falling down.”

Sick, but not crazy.