Relatives of those killed in a Colombia massacre put their loved ones to rest Monday nearly two decades after the attack – while also warning that the government hasn’t done enough to prevent a similar tragedy from happening again. Family members held a memorial ceremony in the Chocó province town of Bojayá following a painstaking process in which forensic scientists used DNA to identify nearly 80 people initially buried in mass graves. People were sheltering in a church as leftist rebels clashed with paramilitaries in 2002, and a mortar shell exploded inside, killing dozens.