A deer lies on charred ground Monday near the ruins of a home near Colorado Springs, Colo. Investigators believe the most destructive wildfire in the state's history was human-caused and are going through the remains of luxury homes seeking evidence.

COLORADO SPRINGS, Colo. — Rain helped firefighters douse Colorado's most destructive wildfire in state history.

Investigators believed Colorado's Black Forest fire was human-caused, and were going through the charred remains of luxury homes destroyed and damaged in it last week. Even though the fire was mostly out, officials were not letting victims back into the most developed area where there was concentrated devastation from the fire because the area was being treated as a possible crime scene.

Residents have been anxious to return but investigators want to preserve evidence, and firefighters also are working to make sure the interior of the burn area is safe, by putting out hot spots and removing trees in danger of falling.

“We're not ignoring you and we're with you,” El Paso County sheriff Terry Maketa said.

In some cases, residents who were escorted back for emergency situations have refused to leave again.

Nearly 500 homes have been lost in the 22-square-mile fire near Colorado Springs, which is 75 percent contained. Two unidentified people who were trying to flee were found dead in the rubble.

Wildfires were also burning in other parts of Colorado as well as California, where more than 700 firefighters battled the Carstens fire. That fire near the main route into Yosemite National Park in the Central Sierra foothills began Sunday afternoon.