VACAVILLE — Two rewards are being offered to bring the person or people to justice for the death of a dog Thursday on Interstate 80 in Vacaville, two animal organizations said.

People for the Ethical Treatment of Animals is offering up to $5,000 for information leading to the arrest and conviction of whoever is responsible for throwing a small dog onto Highway 80 with its back legs tied.

Officials with the Pause 4 Paws Rescue Mission are also offering $5,600 for the identification and arrest for those responsible.

Shortly after 9 p.m. Thursday, motorists saw someone driving a dark blue Toyota Prius, possibly a 2011 or 2012 model, toss the dog onto Highway 80 near the Davis Street exit.

PETA officials said before witnesses could help the dog, a car hit him and he died.

The dog, whose name was Rex, had been reported missing from its home earlier in the day.

Its owner, a Vacaville resident, had been attending a funeral of a loved one and left her 18-month-old puppy Rex home with a friend.

Somehow Rex got out of the home, Vacaville police said.

Rex’s owner had been looking for him for a couple of hours when she got a call from some people who were behind the Toyota Prius when Rex was thrown out the window.

They told her Rex had died.

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“While this little dog’s guardian was hoping for him to return home, someone tied him up and tossed him onto the freeway to die,” PETA vice president Colleen O’Brien said in a statement.

“PETA needs the public’s help in solving this case before this dog’s abuser attacks anyone else,” O’Brien added.

Anyone who wants to donate toward the Pause 4 Paws Rescue Mission fund for Rex can go to

Police said they don’t have a description of the suspect or suspects or a license plate number. Anyone who has information related to Rex’s death is asked to call Officer Josue Cuevas at (707) 449-5200 and reference case No. 18-01071.