We were in Mazatlan having just driven down. A fellow camper came up to us and asked if we'd had any trouble on the way down. We said we hadn't and she told us she was really worried for everyone driving down after what she saw in Los Mochis.
They had stopped there and in the morning saw hundreds of 'banditos' (that was the way she pronounced it!) all waiting at the side of the road and then getting into the back of all these farm trucks. She knew they were 'banditos' as they were all wearing kerchiefs over their mouths and noses!
I can't remember if we told her or not what they really were! :)