Thug caged for battering brother and spraying him with a fire extinguisher on Scots train Darren Thomson attacked brother Mark on a train between Port Glasgow and Paisley last June. Updated ScotRail hit back on Twitter (Image: PA) Join thousands of others and get the latest Scottish crime and courts news sent straight to your inbox with our daily Criminal Record newsletter.Invalid EmailSomething went wrong, please try again later. Subscribe When you subscribe we will use the information you provide to send you these newsletters. Your information will be used in accordance with ourPrivacy Notice. Thank you for subscribingWe have more newslettersShow meSee ourprivacy notice