If you like solving riddles on Twitter, former Bears defensive tackle Henry Melton has a doozy for you. OK, it's not a riddle that's real hard to figure out, especially when the Cowboys official reporter announced Tuesday night that the team had agreed to terms with Melton, a contract ESPN.com's Adam Schefter writes is a multi-year deal. Melton was a fourth-round pick of the Bears in 2010, and in his first three seasons, he racked up a total of 15.5 sacks. But in 2013, he spent most of the season on injured reserve with a torn ACL and didn't record a single sack for the first time in his career.