FBI and police are now looking into unnamed animal rights activists. So far -- investigators say -- no specific person or group has been identified as delivering the threats.
Coyote trapper threatened
July 1, 2010 (CHICAGO) The city hired Rob Erickson in the spring to cull coyotes. After the city's contract that contained Erickson's phone number and e-mail address was made public, Erickson says he started to receive threats.