A young woman named
Jane Macmanamin was working at ''Traveller's Rest'', but in February 1862 she disappeared. Although Martin stated she had moved away on a whim to the
Mount Gambier area in the colony's south east, in April 1862, Jane's sister, who had constantly stayed in contact with her, sent a letter to the police in Adelaide, suspicious because she had not heard from Jane in some time. This matter was being investigated by Lance Corporal William Rollison from the
Wellington police station. On 29 May, a
Ngarrindjeri local, "Micky", told William Allen of
Woods Well (11 miles—about 18 kilometres—north of Salt Creek) that a fellow Ngarrindjeri by the name of Itawanie had found Jane's body hidden and partially buried in a
wombat hole about half a mile (about 800 meters) north of Martin's house. Allen telegraphed the police at
Strathalbyn, where the message was received by Police Trooper
Paul Foelsche who reported this by telegraph to headquarters and then rode to Wellington to inform Rollison of the discovery. Rollison subsequently began a long and very thorough investigation into the murder, and it is largely through his reports to Police Headquarters that so much detail is known about the case. In June 1862, Martin was charged with the murder of Jane Macmanamin. Another man, William Wilsen, who claimed he had been engaged to her, was charged with being an
accessory after the fact. Martin was tried and found guilty. He was hanged at the
Adelaide Gaol on 24 December 1862. He is buried between the walls within the gaol. Wilsen was found guilty of assisting Martin after the murder and sentenced to four years hard labour. He was deported to
Tasmania to carry out his sentence. ==Other possible murders==