August 2017 Sheffield man jailed after subjecting boy to years of sexual abuse A Sheffield man who subjected a teenager to years of sexual abuse is now behind bars for the crimes. Sixty-four year old Stephen Martin, of Holgate Avenue, Parson Cross, was jailed for seven years at Sheffield Crown Court yesterday, after being found guilty following a four-day trial last month. Martin was jailed for four counts of sexual activity with a child and one count of inciting a child to engage in sexual activity, after a jury found him guilty of abusing a young boy who he befriended. Martin systematically groomed this teenage boy, who he befriended, bribing him with sweets and presents before going on to sexually abuse him The victim, who was just 14 at the time the abuse began, was forced to recount his horrendous ordeal after Martin pleaded not-guilty to the offences. Martin has also been subject to an indefinite sexual harm prevention order.