Coniston massacre
On 15 August, dingo trapper Bruce Chapman arrived at Coniston and Murray sent Chapman, Paddy and Alex Wilson and three aboriginal trackers to the soak to find out what happened. The three buried Brooks on the bank of the soak. In the afternoon two Warlpiri, Padygar and Woolingar arrived at Coniston to trade dingo scalps. Believing them to be involved with the murder Paddy arrested them but Woolingar slipped his chains and attempted to escape. Murray fired at Woolingar and he fell with a bullet wound to the head. Stafford then kicked him in the chest breaking a rib. Woolingaar was then chained to a tree for the next 18 hours. The next morning the posse, with Padygar and Woolingar following on foot in chains, set out for the Lander River where they found a camp of 23 Warlpiri at Ngundaru. With the posse encircling the camp, Murray rode in and was surrounded by Aboriginal people yelling, Brisco started shooting with Saxby and Murray joining in. Three men and a woman, Bullfrog's wife Marungali, were killed on the encounter, with another woman dying from her wounds an hour later. A subsequent search of the camp turned up articles belonging to Brooks. Stafford was furious with Murray over the shooting and the next morning returned to Coniston alone.
Cape Grim massacre
On 10 August Robinson encountered convict William Gunchannon, another of the four who had been present at the massacre. Gunchannan admitted his involvement, estimating it had happened about six weeks after the destruction of the sheep, but was reluctant to provide detail. He told Robinson that the Aboriginal group attacked on 10 February had included men and women, but denied knowing whether any had been killed. Robinson later wrote that when he informed him that Chamberlain had already admitted a death toll of about 30, Gunchannan "seemed to glory in the act and said he would shoot them whenever he met them". Robinson did not interview the other two involved in the massacre: Richard Nicholson had previously drowned and John Weavis had since moved to Hobart.