Carey, who is from Grand Rapids, was drafted in the sixth round in 2009 by the Cleveland Browns. He suffered an injury and was let go during training camp, but he was picked up by the Jacksonville Jaguars. Although he spent 2009 on injured reserve, he came back a year later and played in 15 games. He made 10 starts and recorded 55 tackles and one interception for the Jags.
Carey was let go by the Jaguars before the 2011 season and had been looking for a new team ever since. The Lions hosted him for a workout last week, according to Dave Birkett, and the decision was made today to sign him.
It's not known who Carey is replacing on the roster, but my guess is Vincent Fuller. Fuller was signed prior to the Monday night game against the Chicago Bears as safety depth when injuries were piling up at the position. He has been injured the last couple weeks, and my guess is the Lions placed him on injured reserve or released him to create room on the roster for Carey.