KOMO News is reporting that a man dressed as an Umbrella Corporation Security Force Employee on his way to a  Zombie crawl for promoting the Crypticon Horror Convention was detained by police.

He was only detained for a short time - enough time for the police to ensure that his knives, machine gun and grenades were all made of plastic.

Apparently somebody saw the heavily armed umbrella corporation mercenary walk into the shopping mall and thought they were under attack.

Heaven knows what they thought about the actual zombie crawl, that happened later that day.

You can see a video here of police handling the plastic grenades in a plastic evidence bag.

The KOMO News story is found here.

You can also find much more information at seattle-geekly.com including an interview with the man in question!