Joseph McStay, 40; his wife Summer, 43; and their two young children, Gianni and Joey Jr. vanished more than a month ago from their Fallbrook home. They left their dogs unattended and rotting food in their home. There were no signs of a struggle.
Sheriff's investigators have had very few leads -- until now. They say the video may show the family crossing the U.S. Mexico border into Tijuana at the San Ysidro Port of Entry Feb. 8. The McStay’s white Isuzu Trooper was found in a parking lot nearby later that day.
“The lead detective calls me and says ‘I need you to come down and look at something.’ My first question, ‘is it a body’?” Joseph’s brother Mike McStay said.
Instead, the news seemed promising.
“My spirits were lifted, they are alive or there is a possibility they are alive, we are getting closer,’ he said.
But hope diminished quickly.
“It's very grainy, shadows, no definition to shape,” he said. “I basically told them I couldn’t tell… I cannot make a positive identification from the quality of that video.”
Still, he said he's trying to remain optimistic.
“Half my family is missing, everything is in disarray, it's just a nightmare,” he said. “Ultimately I just want my family home safe.”
NBC San Diego tried to get a copy of the surveillance tape but was told that investigators are working to enhance the image, so it can eventually be released to the public.