Aaron H. Thomas, also known as The East Coast Rapist, is an American who was convicted of committing a number of rapes in Maryland, Virginia, Connecticut and Rhode Island since 1997. Police had DNA evidence from the first attacks, but had not matched the DNA in any criminal database. On March 4, 2011, police in Connecticut arrested 39-year-old trucker and New Haven resident Thomas after claiming to have matched his DNA to that of the rapist from a cigarette butt he discarded. Thomas underwent police questioning.
https://en.wikipedia.org/wiki/Aaron_H._Thomas