I just experienced a tragic incident that has me thinking differently about this case. Our 6 lb chihuahua woke us up @ 3am to go potty (like every night) and we let her out and after 15 min she hadn't come back in (very unusual). Searched with flashlights in the woods, on the streets and all surrounding area, searched entire next 2 days - no luck. We found our pup deceased, approx 3 football fields away (straight line as bird flies) - over a steep cliff and apparently dumped in the lake.
We believe she was picked up by an eagle, osprey, or owl as many neighbors have been experiencing lost pets and one recent report of a large owl swooping within 5 or 6 feet of person with 35 lb dog on a leash. We also have coyotes in the area attacking chickens on people's property.
I believe if foulplay by animal (or fowl) as involved here - something would have shown up. Unless that specific area was never searched - no one detected any decomp smell - no clues have been identified.