A slain Colorado police officer credited with preventing more deaths in a mass shooting at a supermarket was being honored at a memorial service before he is laid to rest Tuesday. More than 500 law enforcement vehicles took part in a procession that escorted the hearse carrying Officer Eric Talley's body to the service at Flatirons Community Church in the city of Lafayette. A line of officers waited for Talley’s flag-draped casket to arrive, then his family followed it inside the church, escorted by police.