Sam Mahon is an artist and author living in Waikari in north Canterbury in the South Island of New Zealand. He is the son of Peter Mahon, a lawyer notable for the Mt Erebus disaster inquiry. He has become involved with preventing water pollution in the Canterbury Region and is using art to highlight the issue. For example, in late October 2009, Sam Mahon made a bust of Environment Minister Nick Smith out of dairy-cow dung in order to publicise the campaign to stop the Hurunui River from being dammed for irrigation. In the lead up to the 2011 election he created a painting of prime minister John Key dead in an alley. The image was made into a game on his website where visitors could guess who killed the PM by watching video clips embedded on the page. Those who guess correctly will be announced on election day and be eligible to win prizes, including a cast bronze of a dying dove, another work by Mahon which he describes as "a metaphor for dying hopes".