Reading the news article shocked the hell out of me, then to read the complete story here on Wikipedia was even sicker:
Murder of Tim McLean
On the evening of July 30, 2008, Tim McLean, a 22-year-old Canadian man, was stabbed and beheaded while riding a Greyhound Canada bus about 18 miles (29 km) west of Portage La Prairie, Manitoba traveling the Trans Canada Highway.
The incident took place near Portage la Prairie, Manitoba, during a trip from Edmonton to McLean's hometown of Winnipeg. According to witnesses, McLean was sleeping with his headphones on when the man sitting next to him suddenly produced a large knife and began stabbing McLean in the neck and chest. The attacker then decapitated McLean and displayed his severed head to other passengers outside who had fled the bus in horror. The Royal Canadian Mounted Police (RCMP) arrested 40-year-old Vince Weiguang Li soon afterward.
At 12:01 a.m. on July 30, 2008, Tim McLean departed Edmonton on board Greyhound bus 1170 to Winnipeg, via the Yellowhead Highway through Saskatchewan. He sat at the rear, one row ahead of the washroom. At 6:55 p.m., the bus departed from a stop in Erickson, Manitoba with a new passenger, Vince Weiguang Li. Li, described as a tall man in his 40s, with a shaved head and sunglasses, originally sat near the front of the bus, but moved to sit next to McLean following a scheduled rest stop. McLean "barely acknowledged" Li, then fell asleep against the window pane, headphones covering his ears.
At 8:30 p.m., the RCMP in Portage la Prairie, Manitoba received a report of a stabbing on a Greyhound bus west of the city. They arrived to find the suspect still on board the bus, being prevented from escaping by another passenger, the bus driver, and a truck driver who had provided a crowbar and a hammer as weapons. The other passengers were huddled at the roadside, some of them crying and vomiting. As the suspect had earlier attempted to escape by driving the bus away, the driver had engaged the emergency immobilizer system, rendering the vehicle inoperable. Witnesses had observed the suspect stabbing and cutting McLean's body, and carrying McLean's severed head.
By 9:00 p.m., police were in a standoff with the suspect and had summoned special negotiators and a heavily-armed tactical unit. The suspect taunted police, alternately pacing the length of the bus and cutting and defiling the corpse. Police officers then observed Li eating parts of the body. Meanwhile, the stranded passengers were transported from the scene to be interviewed at the Brandon RCMP detachment. RCMP officers reportedly heard Li say, "I have to stay on the bus forever."
On July 31, 2008 at 1:30 a.m., the suspect attempted to escape from the bus by breaking through a window. He was quickly apprehended, handcuffed and placed in the back of a police cruiser. Li was carrying a plastic bag when he was arrested, containing a human nose, ear and part of a mouth. At 10:00 a.m., Greyhound representatives took the other passengers to a local store to replace their clothes, which remained on the bus. They arrived in Winnipeg at 3:30 p.m. that day, to be reunited with family members and friends.
Witness accounts
Garnet Caton, a 26-year-old seismic driller who sat one row ahead of McLean, described hearing "a blood-curdling scream," saying, "I turned around and the guy sitting right [behind] me was standing up and stabbing another guy with a big Rambo knife.... Right in the throat. Repeatedly."
Caton added: "I got sick after I saw the head thing. Some people were puking, some people were crying, some people were shocked. [The attacker] just looked at us and dropped the head on the ground, totally calm." A police officer who was at the scene said the attacker also cut off parts of the victim's body and ate them.
Another passenger, Stephen Allison, stated that McLean fought his attacker, providing other passengers with the opportunity to get off the bus.