Rescue divers had spent much of Monday making preparations for a final push to locate the lost soccer players, aged 11 to 16, and their 25-year-old coach.
The 20 dogs were removed from Virgilio's home in August after an animal control officer noticed the dogs suffering from dehydration, malnutrition and other ailments.
Grand Teton National Park rangers launched an air, water and ground search Saturday evening after a call came in about the man tumbling into Snake River.