Tophouse is located near State Highway 63. There were also plans to establish a significant railway junction in Tophouse. One plan from the 1880s for the route of the Main North Line from Christchurch to Marlborough and Nelson proposed extending the Waiau Branch line (then terminated in Culverden) via Hanmer Springs to Tophouse, and then building one branch down the Wairau River valley to Blenheim and another to Nelson. This proposal remained under consideration until the 1930s, when a coastal route via Parnassus and Kaikoura was chosen instead of the inland Tophouse route.
Bill travelled to the Tophouse hotel, arriving on the evening of Thursday, October 4th, and convinced John to go out rabbit shooting with him. He then shot John in the back of the head, and dragged his body into the bushes. Bateman then went the 300m to the nearby telegraph station, and told the telegraphist, Mr William Wallis, that Mr Lane wanted to talk to him. When Wallis accompanied Bateman, he too was shot, his body being concealed under a horse-cover. During the night, Bateman repeatedly threatened Miss Wylie, and Mrs Wallis (who locked herself in the telegraph station and tried to call for help), but did not shoot either woman.
When the police arrived the following evening, having been alerted by Mrs Wallis' attempts at calling for help, they found Bateman on the verandah of the hotel, having shot himself in the head with his muzzle-loading shotgun. To accomplish this he had removed his shoes and socks and placed his toe on the trigger, putting the barrel of the gun under his chin. The shot went through his head, and the blast holes can still be seen in the roof-boards of the verandah even today.