Killings in Nuevo Laredo

I was watching the News (Pro 8 News) and it said that 3 or 4 men were killed, heads taken off and they put a finger in the mouth which was nasty. I cant believe that a person could do that i mean its like if it came out of a hollywood horror movie i can understand it there because its fake but in real life wow.They left a note aside of the bodies saying to watch out for all the snitches of something like that. Well thats all I have to say but it was really scary..