Search and rescue crews were out on Mount Charleston again Thursday, looking for missing sports writer David Malinsky.
Malinsky is well-known by many in Las Vegas as a writer and expert on sports betting. He also is an avid hiker.
He was heading out for a day hike Saturday on the north loop of Mount Charleston, and family and friends worried when he wasn't back later that day.
"I was just instantly sick to my stomach," says friend Jake Dittler.
Rescue crews were able to find Malinsky's car near the trailhead, but no sign of Malinsky. Thursday, crews from Red Rock Search and Rescue focused on an area near Harris Springs Road, where there a possible sighting on Malinsky at 4 and 6:30 p.m. Saturday.
But now that the search has stretched into 5 days, crews are concerned about the impact of weather.
"It was in the 20's overnight and it snowed overnight two of the nights that he's been missing," says Craig McVeay with Red Rock Search and Rescue.
Metro police are also assisting in the search. They don't believe there was foul play involved but are concerned there could be a medical issue at play or that Malinsky could have been injured.
Family and friends say they're not giving up hope. They say Malinsky loved life and his career, and wouldn't be the type to give up.
"If there's any situation where he's fighting to hang on, I know he will," Dittler says.