CONIFER, Colo. The Jefferson County Sheriff's Office said it is responding to a barricaded gunman situation in Conifer. Details about the situation are limited at this time. In a social media post, JCSO said it was "working a barricaded gunman situation" in the 12000 block of Critchell Lane in Conifer. A shelter-in-place order has been issued for residents within a 1/4 mile. Those outside of the order are urged to avoid the area at this time. The sheriff's office said updates will be posted when they are available. This is a developing story.