As you know I'm promoting Pulp Action Library's gangster-era game "Mad Dogs With Guns" – link
"Mad Dogs With Guns" is full of short bits of 'faction' – actual history wrapped up in hardboiled-style writing. I'll share a few bits with you:
LAKE VIEW HOTEL, NR. DELAFIELD, WISCONSIN, AUGUST 1930
The Lindy Hop was all the rage, and Mr Goodman was happy to feed nickels into the mechanical player-piano. Sometimes he could almost forget his past. It wasn't very long since he was known as Jack Zuta, and Jack Zuta had made himself very unpopular with a man in Chicago. He was fully occupied in counting change, so he didn't notice five men file quietly into the dance pavilion. They lined up behind him, so he'd see them when he turned. His smile didn't last long. Sixteen slugs saw to that.
Mr Goodman fell, the dancers screamed, the killers walked out. The player-piano continued to work through the nickels. It was a popular song that summer; "Good for you, bad for me."