Transcript for Cop Killer on the Run, Communities on Edge Amid Manhunt
Different kind of snow -- up in a mountain that is made it even tougher for police. Trying to track that rogue ex cop who has a stash of weapons and a dangerous mind. The families of police officers targeted and tonight under police protection themselves and we have to report. Starting with ABC's David Wright David. Good evening Diane from Southern California. There's no such thing as endless summer here in big bear a small army of police officers deployed to this mountain resort searching for Christopher Horner. But. No luck so far the weather hasn't exactly -- there been no new sightings in more than 24 hours. On every highway signs like this armed and dangerous. Today -- -- Palma authorities searched the home to Warner shares with his mother and sister. Here in big bear the blizzard has made aerial searches impossible on the ground not much better. Police took snow -- up the mountain surgeons removed. We're gonna continue to search and Italian air we discover that he left the mountain are we find him Greg and Christine -- -- are spending their anniversary here fools. Carrying -- we're looking in cars have done things that have never done before we don't know the restaurant. I'm looking -- the back door the last real clue of corners whereabouts the smoldering wreck of his truck. -- more than 24 hours ago with nobody inside. Footsteps leading away how far away that the question tonight the trail has gone cold shrouded in snow and something else. The suspect those police methods and tactics.
This transcript has been automatically generated and may not be 100% accurate.