Nearly 10 years later, families and officials still search for answers in SC bike shop deaths

One of South Carolina's most heinous killings remain unsolved after almost 10 years.

Four people were killed inside a motorcycle shop in Spartanburg County on Nov. 6, 2003. Investigators have followed more than 750 leads but haven't made any arrests, leaving four victims' families searching for answers.

The victims were killed with the same 9 mm pistol. Investigators think the killer came in the back of Superbike Motorsports, perhaps through an open garage door.

In March 2012, Sheriff Chuck Wright released a revised sketch of a customer in the store less than an hour before the killings. At the time he said he thought that man was the killer. But now he says he isn't as sure, thinking instead that the man may have information that can crack the case.