This manhunt reminds me of Eric Rudolph, the Olympic Park bomber. LE searched for him for years using all the advanced technology available to him. Eventually he was found, 5 years later, while dumpster diving. Rudolph did have military training however, and grew up in the mountains, so he did have some advantages that BL does not. But that case does show how hard it can be, even with advanced technology, to find someone who doesn't want to be found. Rudolph also didn't live completely off the land as he did steal from mountain cabins and dumpster dive at times.