A suicidal 24 year old mum drowned her 2-year-old son in their family home before going to a rock in Dartmoor and plunging 100ft to her death - with her five year old son on her back. Read the full story from the Mirror below...Katherine Hooper and five-year-old son Joshua Patterson were killed when they fell between 80-100 feet from Lowman Tor at Haytor Rock on Dartmoor last July.When police later went to her family home in Paignton, Devon,...