A 40-year-old man is in custody in Manitoba after a young man was stabbed — and, witnesses said, decapitated — aboard a Greyhound bus travelling through the province overnight. Police officers spent Thursday examining a Greyhound bus where a passenger was reportedly stabbed and decapitated late Wednesday. The RCMP would not confirm the reports of beheading, saying only that a stabbing took place around 8:30 p.m. CT on an eastbound Greyhound bus on the Trans-Canada Highway about 20 kilometres west of Portage la Prairie. The suspect, believed to be from outside Manitoba, was arrested early Thursday morning after a standoff...