David Mercado, AKA ”Thug Nasty” Is Larimer County’s Most WantedDavid Mercado, AKA ”Thug Nasty” Is Larimer County’s Most WantedHe is known by the street names of "Baby Thug" and "Thug Nasty." Mercado should be considered dangerous and should not be approached.Doug RandallDoug Randall