The Mark’s Murders occurred in 1847-49 around modern-day Goondiwindi and along the McIntyre River. Squatters first reached the McIntyre in 1837 but many were forced out of the McIntyre due to fierce resistance by the Bigambul people. This episode describes the different experiences of two early squatters on the McIntyre – Captain Scott and Tinker Campbell. Their experiences provide context for the subsequent events that unfolded in 1847.