Port Arthur is a name synonymous with Australia’s worst modern-day massacre: 35 murdered, and 25 wounded. On that day, Phil Pyke was in his early 30s and became part of the story: his job, to guard the hospital room of the shooter, Martin Bryant. He speaks of how challenging that was, his time in the police and army, how his mental health started to spiral - and how it’s his golden retrievers that helped him find his way back.