Strange as it may seem, George Zimmerman used his MySpace account up until the day of his arrest (4/11) for the murder of 17-year-old Trayvon Martin.  Even stranger is the profile name that Zimmerman used for himself.

"Datniggytb", was the name he chose to identify himself with on the site.  Some might find it coincidental that he chose to put the letters "tb" at the end of the name, which many could associate with Trayvon Benjamin, which were Trayvon Martin's first and middle name.  

One of George's family members spoke up about the meaning behind the name, and how it had nothing to do with Trayvon Martin. 

"That was an old nickname his black friends gave him. He didn't have an issue with the profile name.  They called him 'Tugboat' because he was so big."

Source: globalgrind.com