 asking for first responders to come rescue individuals in desperate life safety conditions. Extreme heat is also killing people out west. At least one motorcyclist in Death Valley, California, and four other suspected deaths near Portland. This tourist in Las Vegas. Yeah, we were going to walk up and down the strip, but it's just way too hot to do that. It's 109 degrees right now in Sin City. CBS News Brief. I'm Monica Ricks.