Johnathon Robert Madden (11 May 1991 – 25 November 2003) was a twelve-year-old Canadian boy whose gruesome murder at the hands of his sixteen-year-old brother Kevin Madden and his brother's friend Timothy Ferriman provoked widespread revulsion and outrage in Johnathon's home city of Toronto and across Canada. The ensuing trials of Madden and Ferriman have created a media sensation in Toronto and in the Canadian English media generally, which intensified after the first trial ended in a mistrial when a key witness was discovered to have committed perjury.