The licensed firearms owner shot two women, two men and the girl in the Keyham area of the city on Thursday evening.
Police stated the incident, the worst mass shooting in Britain since 2010, is not linked with terror. In online videos, Davison talked about being “beaten down” and “defeated by life”.
Emergency services were phoned to Biddick Drive immediately after 18:00 BST on Thursday. Five people, comprising 22-year-old Davison, died at the scene, and one died later in hospital.
Devon and Cornwall Police Chief Constable Shaun Sawyer stated Davison was a firearms licence holder.
He mentioned witnesses had narrated the weapon used in the shooting as a “pump action shotgun”, but police were not approving that at this stage. Mr Sawyer established a firearm had been found from the scene, and officers were not searching for anyone else concerning the incident.
The police received calls to an address on Biddick Drive at 18:11, after which armed and unarmed officers arrived within six minutes. Mr Sawyer mentioned, “Multiple shots have been fired from a firearm during that six minute-or-so period”. He said Davison “murdered a woman at the address” before moving out on the street, where “he immediately shot and killed a very young girl. He also shot and killed the male relative of that girl“.
Davison then fired at another man and a woman on Biddick Drive who are in hospital with injuries “not thought to be life-threatening”.
He then went into a park, “where he immediately shot a man who died at the scene”, and then went to Henderson Place, where he fired at a woman who later died at Derriford Hospital.
“Eye witnesses have told us that then Mr Davison turned the gun on himself taking his own life,” mentioned Mr Sawyer.
Prime Minister Boris Johnson tweeted, “My thoughts are with the friends and family of those who lost their lives and with all those affected by the tragic incident in Plymouth last night.
I thank the emergency services for their response.”
Plymouth Sutton and Devonport MP Luke Pollard expressed that it was “unspeakably awful”, and he was “utterly devastated” to learn one of those fired was a child.
People were told to stay inside and monitor police advice as the emergency services responded.
He said: “There were some fairly traumatic aspects to this incident and as a community now need to come together and try and understand it as much as we can.”