Hundreds of people attended the funeral of a southwestern Ontario farm couple on Monday as police continued to search for a 22-year-old man suspected of shooting them and stealing their truck after killing a Windsor-area bartender.

William and Helene Regier were found dead in their rural home July 23.William and Helene Regier were found dead in their rural home July 23.
(Canadian Press)

The bodies of William Regier, 72, and his 73-year-old wife, Helene, were found July 23 in their house near Dashwood, northwest of London.

Their funeral was held down the road from their home at Our Lady of Mount Carmel Roman Catholic Church, which holds about 500.

It was filled well before the service began. Mourners lined up outside and others sat on chairs on the lawn.

Jesse Imeson is considered armed and dangerous. Police say any citizen who spots him should call 911 immediately.Jesse Imeson is considered armed and dangerous. Police say any citizen who spots him should call 911 immediately.
(Ontario Provincial Police)

A nationwide arrest warrant has been issued for Jesse Norman Imeson, described as six foot one and 200 pounds, with short-shaved hair and tattoos on his forearms. Police warn that he is considered armed and dangerous.

Even before the Regiers died, he was sought in the death of Carlos Rivera, 26, a bartender at a gay club.

Rivera's body was found in Imeson's Windsor apartment July 19, police said. He had been strangled.

Investigators have renewed their plea for help in finding the Regiers' silver 2006 GMC Sierra pickup, Ontario licence JK8 334.

Building superintendents, parking lot attendants and commuters are asked to keep an eye out for it in case it has been abandoned, a police statement said.

However, a stolen green Ford Taurus found in dense bush July 25 is no longer considered to be connected to the killings. A forensic examination yielded no links to the Regier or Rivera cases, the statement said.