A 19-year-old Baltimore man, charged with raping a Canton woman after shoveling her snow in December as well as two attacks in rural Virginia, has been linked through DNA to a fourth rape that occurred in Canton in 2007.

Donald Vaughan was arrested Dec. 21 and accused of raping and slashing the throat of a Canton woman who had paid him to shovel her front sidewalk. It later emerged that Vaughan had been under juvenile supervision in Kilmarnock, Va., where he was under surveillance as a suspect in two rapes there.

The Baltimore Sun reported that Virginia authorities, who assumed responsibility for Vaughan's supervision under interstate agreements, had not notified Maryland officials that Vaughan was returning or that he was a rape suspect. The 2009 Canton attack occurred during a return to Baltimore for the holidays.

Now city police have charged Vaughan in a fourth attack, which court records say occurred Jan 1, 2007, in the 2700 block of Dillon St. The crime follows a pattern of break-ins and attacks that Vaughan has been accused of since a young age.

Here's a link to what appears to be Vaughan's Myspace page.