"The sparrow" is the answer to the nursery rhyme murder query "Who killed..."
While it is about 
two men who meet on a train and devise to commit murder, I don't... [DOC] [TLE] Full text of "Children's rhymes, children's games, children's songs ... [PAR] Writing on the subject of nursery rhymes more than half a century ago, the late Dr. 
..... [Death.