A violent thug exploited his autistic brother by having him keep a submachine gun in his family's home.
Liam Rogan and his "partner in crime" Ryan Kennedy were on remand in prison over the brutal kidnap of a 17-year-old boy.
But they had arranged for Liam's younger brother, Jake Rogan, to stash a Heckler & Koch MP5 at the house he shared with his girlfriend and baby daughter.