A Tobago man will go on trial today charged with the fatal stabbing of American teen Kitty Nickole Pepe.Sean Antoine, 27, a construction worker of Charlotteville, pleaded "not guilty" last Friday, on arraignment before a jury in the Tobago High Court.He was represented by attorney Wayne Sturge, while Jennifer Martin appeared for the State.The accused is on trial before Justice Geoffrey Henderson and a jury comprising 12 members and three alternates.Pepe, 13, of Ohio, USA, was found stabbed to death on July 1, 2005, in the home she and her mother shared in Charlotteville.