Gunman Jake Davison received mental health support during the coronavirus lockdown, it has emerged. The 22-year-old, who shot dead five people during one of the UK’s worst mass shootings, had been in contact with a telephone helpline service in Plymouth run by the Livewell Southwest organisation. The apprentice crane driver shot and killed his 51-year-old mother Maxine Davison at a house in Biddick Drive in the Keyham area of the city on Aug. 12. He then went outside into the street and shot dead 3-year-old Sophie Martyn and her father Lee Martyn, 43, in an attack witnessed by horrified onlookers. In the 12-minute attack, he killed Stephen Washington, 59, in a nearby park, before shooting Kate Shepherd, 66, on Henderson Place. Davison then turned the gun on himself before armed officers reached him. Reports have suggested Davison’s mother had been struggling to get help for her son, having become concerned …