I'm confused by the Van Alden scene. I know his wife made the liquor and he sold it. The guy he sold it to must have ratted on him. BUT, Who and why was that guy threatening him?
Van Alden and his sweet but deadly wife are clueless about the territorial Chicago arrangements between the Torrio-Capone group and the various other gangs, especially O'Bannion's North siders. So Van Alden, who as far as Capone knows is an O'Bannion enforcer, is selling whiskey outside of his area, which is a serious offense. So the saloon owner told his Capone affiliated supplier and Van Alden was picked up by Capone gunmen and threatened by Capone...
"When the snows fall and the white winds blow, the lone wolf dies but the pack survives." Winter is Coming Now this is the Law of the Jungle—as old and as true as the sky; And the wolf that shall keep it may prosper, but the wolf that shall break it must die. As the creeper that girdles the tree-trunk, the Law runneth forward and back; For the strength of the Pack is the Wolf, and the strength of the Wolf is the Pack.
