A mass murderer or spree killer is a killer who kills several victims in a short period of time

Umpqua Community College shooting

On October 1, 2015, a mass shooting took place at Umpqua Community College, near Roseburg, Oregon, United States.^[5] Christopher Harper-Mercer, a 26-year-old student, fatally shot nine people and injured nine others on the campus.^[6][7] He killed himself following a gun battle with responding police officers

Christopher Harper-Mercer

Whilst America  reels from its latest mass /spree killings and the USA once again  debates the rights and wrongs of gun control , here in the UK  ( and Europe ) we have a long history of lone gunmen , whom for reasons beyond our comprehension decide to kill multiple people. Below is a profile of three of the most recent and deadly mass/spree killings in the UK.

This list does not include IRA mass murders …