Canadian police intensified their search for Jenkins today, after a nationwide provisional warrant was issued for his arrest Friday, after his car and boat trailer were found in northern Washington State, and his ski boat was found at a marina in Port Roberts, Wash., walking distance from the Canadian border.
"We're leaving no stone unturned, but we have to play our cards close to our chest right now," Royal Canadian Mounted Police Sgt. Duncan Pound said today.
The search was centered around Vancouver and British Columbia, Canadian Public Safety Minister Peter Van Loan said.
Late last night, a traveler on a flight from Vancouver who looked like Jenkins was taken into custody at Toronto's Pearson International Airport.
Staff-Sgt. Keith Brodie of the airport division of Peel Regional Police confirmed that authorities had detained someone who matched Jenkins' description, but said that man was questioned and released, once it was confirmed he was not Jenkins.
"Obviously with a case like this where there's a great deal of media attention and publicity, there tends to be a higher number of possible sightings and people that are trying to be helpful," Sgt. Duncan Pound of the Royal Canadian Mounted Police told ABC News' "Nightline" Friday.
ABC News' Russell Goldman, Abby Tegnelia, Sarah Netter, Sabina Ghebremedhin, Michael S. James and The Associated Press contributed to this report.