Hi Bobo. Sorry to hear about your coop and your flock. I'm a from a Colorado family, last lived in Englewood before I retired and then moved to Florida. I remember, all to well, how we always had to protect our livestock from both bears and mountain lions. In Colorado, you can live in a Denver suburb like HIghlands Ranch, , and wake up to see either one lying on your outside deck. Between you and your motor vehicle.
I haven't read all of the previous responses, but what I would advise is to:
1) Build a strong coop. 4x4 posts set in concrete, elevate floor with 3/4" plywood floor. Surround the coop on all sides with hardware cloth, before you add the side panels and roof. Use steel panels for the roof.
2) If you build a run, same construction. Use landscape ties set 2' in ground in concrete, 2x4 framing. Hardware cloth around all, use a solid wood door for entry with heavy duty gate lock. Roof same as coop - steel paneling.
3) Build a good solid electric fence around it all, use a plan designed for cattle. Do NOT use poultry netting - too weak a charge for large animals. Solar chargers work great in Colorado .You actually have more sunny days than we do here in FLorida- I used them when I lived there. Hang a couple of trail cameras - you want to see what is coming around at night, and at what times.
4) Take up all the food at night. I take up all my bell feeders every night and lock them in a box I built from 2x4's and metal paneling. Also, be sure that the poultry operation isn't near any trash or garbage cans. You may have a neighbor that is doing something that is attracting them, as usually they don't want to be around humans. The one that tore your place up seems to have lost it's fear of people. If so, the Wildlife Officers need to get involved, dart it, and it relocate it, before someone gets hurt.
As to those that our concerned about the bears, don't be. I love animals, have many on our homestead here, but I will never put the welfare of a wild animal over that of my family or livestock. That bear will attack you without reservation, if it thought it could get some food out of you.