NEWS.com.au | Aaron Cockman, father of murdered Margaret River family, speaks out to Sunday Night NEWS.com.au THIS man lost his entire family in the Margaret River massacre and is now speaking out for the first time about the horrible ordeal. Denham Hitchcock. news.com.auJune 17, 201812:45pm. Aaron Cockman speaking on Sunday Night. He is the father of the ... Australia's Margaret River deaths: Father heard about tragedy from a co-worker 'Just like killing sheep': Dad on why granddad shot kids Aaron Cockman found out about kids' deaths on the radio |