I know :-)
The reason is the usual online lyrics sources don't include those lines, but they're on the record.
"There were 345 murders in this city in the last six months, and they have three things in common. First, they have nothing in common; second, they have no motive; and third, they are all unsolved.
...and I've heard that line, too, but I can't remenber where it came from!
whatever it is, I don't believe I've ever smoked it.