HYANNIS, Mass. -- Police have accused a 13-year-old of masterminding the slaying of his 16-year-old half brother so he could take over a drug operation they are alleged to have inherited from their father. Jordan Mendes was found shot, stabbed 27 times and dumped into a pit, where his body was torched. District Attorney Michael O'Keefe said Mendes was a "significant drug dealer." Authorities said Mykel Mendes, a seventh-grader, was jealous of the money his half brother was making selling OxyContin and cocaine and wanted to take over. A 13-year-old friend and a 20-year-old cousin also are charged with murder.