Due to New York Jets quarterback Mark Sanchez's continuing sub-par performance on the football field, many loyal Jets fans are extremely upset with him.  Some are so upset, in fact, that they've actually been threatening to kill him.

One Twitter user, "@BraveGranCru," sent Sanchez a series of aggressive tweets, threatening to kill him while the Jets are at practice.  He solely blames all of the Jets' failures on Sanchez's lackluster performance.  His tweets became so threatening that the NFL demanded that the Jets investigate the matter to see if serious action needs to be taken against the man who simply describes himself as a die-hard Jets fan.  

So far no action has been taken against @BraveGranCru, and he is still using his Twitter account.  See the tweets above.

Source: theurbandaily.com