Plotting murder at Bankstown Library! December 4, 2014 By raspratt The kids helped me come up with a cracking murder mystery story. Key idea – frame the teacher with tainted DNA evidence. Share this:Click to share on Twitter (Opens in new window)Share on Facebook (Opens in new window) Related About raspratt Author and television writer. Best known for writing the 'Friday Barnes' and 'Nanny Piggins' series.