But gunmen of the left and right have killed with impunity across Antioquia for years , and there were unconfirmed reports that the latest bloodshed was the work of a right-wing paramilitary group .
<response> But gunmen of the left and right have killed with impunity across <location>Antioquia</location> for years , and there were unconfirmed reports that the latest bloodshed was the work of a right-wing paramilitary group . </response>