Police have located one of the vehicles sought in a continuing manhunt for the suspect in three slayings in southwestern Ontario.

Jesse Imeson, 22, is still at large and is considered armed and dangerous. Police have asked the public to call 911 immediately and not approach Imeson if he is spotted.
(OPP)

A police plane spotted the green Ford Taurus in dense bush on Wednesday evening near the village of Zurich, about 100 kilometres northwest of London.

But there was no sign of Jesse Imeson, 22, who is wanted for two counts of first-degree murder in the slayings of William Regier, 72, and his wife, Helene Regier, 73.

"The vehicle was subsequently towed and is being held for expert examination by our forensic unit," OPP Const. Jeff Walraven told CBC News on Thursday.

The Regiers were found slain on Monday in their farmhouse in the small rural community of Dashwood, near the eastern shore of Lake Huron.

Imeson was already the subject of a Canada-wide warrant in last week's killing of Windsor bartender Carlos Rivera.

Investigators are still asking anyone who spots the couple's stolen vehicle, a grey 2006 GMC Sierra pickup truck with the licence number JK8 334, to call police.

U.S. crime-fighting show America's Most Wanted has joined the search for Imeson and has posted his image on its website.  

Victims honoured

The Regiers were remembered as "pillars of the community" in a memorial service Wednesday. Married for 52 years, they leave behind six children, 16 grandchildren and five great-grandchildren.

Their funerals are scheduled for Monday.

Meanwhile, about 150 people filled the pews at St. Vincent de Paul Catholic Church in Windsor's east end on Wednesday to pay respects to Rivera, 25, whose friends recalled his great wit.

Rivera's body was discovered last Thursday in an Erie Street rooming house where Imeson lived. He died of strangulation.

Rev. Tom Ashton described him as "a shining example of all that is good in humans."