Using DNA tests the Canadians were able to determine that a left and right foot were from the same man and that one of the feet belonged to a woman. They also determined that the feet were not severed by detached by decomposition.

Investigators have eliminated 130 people from a list of 243 missing persons, while authorities continue to examine multiple possibilities for the origin of the feet, including foul play and the chance they belonged to victims of a plane crash.
The five feet were found in running shoes. Four of the shoes were made between 2003 and 2004, according to police, and the other was made in 1999. The RCMP released photos of the shoes hoping someone can help identify the remains.

It turns out that the sixth foot that was discovered last month was a hoax.
There is a timeline of the discoveries, locations and types of shoes in the article if you are new to this story. I’ve been blogging about this for awhile and am fascinated by it because it’s a such a weird mystery. If it were a plane crash wouldn’t they have a record of that somewhere? And it seems weird that if a serial killer were dumping bodies, that only the feet are washing ashore.