A Kurdish protester sits behind a sign reading " STOP ISIS terror" in front of the United Nations headquarters in Vienna October 9, 2014. A group of Kurdish people living in Austria are on hunger strike since Monday in solidarity for Syrian Kurd
A Kurdish protester sits behind a sign reading " STOP ISIS terror" in front of the United Nations headquarters in Vienna October 9, 2014. A group of Kurdish people living in Austria are on hunger strike since Monday in solidarity for Syrian Kurds who are fighting to defend the Syrian-Turkey border town of Kobane from Islamic State militants. Reuters/Leonhard Foeger

A Canadian who joined the ISIS in January 2013 has urged fellow Canadian-Muslims to carry out lone-wolf attacks on Canadian targets. The man was identified as John Maguire.

In the six-minute, 13-second video released by SITE Intelligence Group, a U.S. company that monitors global jihadist posts, Maguire, who hails from Ottawa, told viewers, presumably Canadians, that it should not be surprising when Muslims execute operations "where it hurts you the most - on your very own soil." Using his jihadi name Abu Anwar al-Canadi, the video of 23-year-old Maguire was shown to have been recorded among the ruins of an unidentified area in Iraq or Syria.

According to the Royal Canadian Mounted Police, there has been an ongoing investigation against Maguire, who disappeared in 2013. Law enforcement officials told his family they believed he has joined the ISIS after discovering he had purchased a one-way ticket to Syria. Maguire was positively identified to CBC by an unidentified family member. "This young man is definitely John Douglas...but not the John Douglas that we knew, loved and remember." John Douglas is Maguire's first and middle name. "You cannot imagine how badly I feel that I did not realize or understand what was going on at the time."

Maguire warned Canada its involvement in the U.S.-led coalition will have dire consequences to the people back home and that it will surely lead to revenge attacks. "Your people will be indiscriminately targeted, as you indiscriminately target our people," he said. CBC said his Twitter handle is believed to be Yahya Maguire.

Addressing Muslims living in Canada, he said they only have two options, which are either to pack up and join the Islamic State or follow the example of Martin Couture-Rouleau. The latter ran down and killed Warrant Officer Patrice Vincent in Quebec in October. Michael Zehaf-Bibeau was also mentioned in the video. Zehaf-Bibeau killed an honour guard at the National War Memorial in Ottawa in the same month, before storming Parliament Hill.

Friends said Maguire had played guitar in several bands, including a dance band and a punk band, during high school at North Grenville District, Edmonton Sun reported. He attended university in Los Angeles on a scholarship and had a high GPA in university. Maguire said in the video that he "grew up on the hockey rink." According to SITE, the video, produced by ISIS' al-I'tisaam Media Foundation, appeared Sunday on Twitter and Jihadi forums.

Ottawa Muslim convert John "Yahya" Maguire resurfaced Sunday in an #ISIS video threatening attacks on Canadians. http://t.co/f50C7Lq03c

— Stewart Bell (@StewartBellNP) December 7, 2014

Steven Blaney, Public Safety Minister, urged Canadians to be vigilant. The Harper government has yet to confirm nor deny the authenticity of the video's contents.