An Ontario man has lost his job at a men's plus-sized clothing store after posting an offensive comment on an Amanda Todd memorial Facebook web page.

A spokesperson from Grafton-Fraser Inc. confirmed the man was an employee at a Mr. Big & Tall store but would not identify him.

The man, initially believed to be from Toronto, worked at a London, Ont., store and was identified by local media as Justin Hutchings.

His offensive post was brought to the attention of the firm by Christine Claveau, a stay-at-home mom who lives in Calgary.

She was on the Todd memorial page Sunday when she noticed the post, which she says read: "It's about time this b---- died."

"That one made my stomach turn," Claveau told QMI Agency Tuesday. "I couldn't believe someone would say such a heinous thing."

Todd is the BC teen who took her own life after falling victim to cyber-bullies.

Her death has catapulted the issue of teen suicide and bullying into the global spotlight and a number of tribute web pages have sprung up on Facebook.

But those same pages are also spawning a backlash directed at Todd even after her death.

Claveau said the man's post upset her so much that she clicked on his Facebook profile, where his job title and employer were prominently displayed.

She then wrote the company an e-mail, detailing his online conduct, but said she didn't ask that he be fired.

"This company works with people who would probably have some insecurities about their bodies," she said. "To think that someone so cold and crass could say something like that on a Facebook page, I can only imagine what he's saying about the clients he probably deals with."

Claveau said the company replied, saying it had taken action and condemned his comments.

When reached by QMI, Kamy Scarlett, a spokesman for the company, said they took the action they felt best represented their ethics.

"We have zero tolerance for the mistreatment of others no matter what form it takes," Scarlett said in an e-mail.

Claveau and two other women from Calgary have started their own Facebook page to fight cyber-bullying and are reporting the hateful comments they find to the social networking site and the RCMP.

Lindsay Ulsifer, one of the pages co-administrators, said they had been accused of "bullying the bullies," but they want to help others who feel, like Todd, that they've lost all hope.

They also want people to know they can't spew hate and hide behind their computers, Ulsifer said.

"Facebook is not as private as you think," she said.

--with files from Shawn Jeffords