They don't know for sure, but the theory is that the bear hitched a ride from a dumpster in North Vancouver. Then the truck driver noticed when he emptied the dumpster into the back of his truck.
For approximately an hour the bear just sat in the back of the garbage truck while conservation officers made their way to the scene. Of course a crowd started to form as they weren't accustomed to seeing a bear, let alone one downtown.
Eventually the conservation officers arrived and shot the bear with a tranquilizer. Ten minutes later the bear started to pass out when he almost fell from the truck onto the pavement below. Luckily a conservation officer climbed onto the truck to grab him in time.
They ended up taking the bear to Upper Squamish Valley to be released far away from the city. He really was lucky to survive the ordeal. Hopefully the bear did not develop a taste for garbage and get drawn back into urban areas.
The trash dumpster rental company involved (http://www.minibins.com/
The owner of MiniBins.com Bret Dougherty is an animal lover and the last thing he'd want to see is a bear getting hurt in a future incident. When bears have easy access to dumpsters, they can also become too reliant on human food scraps and keep coming back to the dumpsters to look for food.
MiniBins.com has been operating across the Lower Mainland since 2005. Covering that wide area means that some of those dumpster and disposal bins are bound to be close to forests. So it was obvious something needed to be done to eliminate the risk.
With their new business venture it was even more important to deal with this issue. Along with a partner, Bret recently launched a food waste recycling company http://www.foodwasterecyclers.com/