Let us remember John Cody, said to be a member of St. Louis' Cuckoo gang, who was found in a ditch on this date back in 1927. What he did or didn't do to end up in a ditch on the outskirts of town wasn't stated. We here at DGIS offer a few motives.
1) Gang warfare
2) Internecine gang warfare
3) Highjacking booze
4) Somehow wronging some other underworld figure
5) Stating that "Al Jolson really sings!" in the Jazz Singer without first saying, "Spoiler alert."