"The death threats started in 2015, when Walter Lübcke defended the refugee policy of Chancellor Angela Merkel. A regional politician for her conservative party, he would go to small towns in his district and explain that welcoming those in need was a matter of German and Christian values""
A Political Murder and Far-Right Terrorism: Germany’s New Hateful Reality (New York Times, link):
“Hateful emails started pouring in. His name appeared on an online neo-Nazi hit list. His private address was published on a far-right blog. A video of him was shared hundreds of thousands of times, along with emojis of guns and gallows and sometimes explicit calls to murder him: “Shoot him now, this bastard.”
And then someone did.”
And see: German far-right group ‘used police data to compile death list’ – Activists linked to military and police suspected of preparing terror attack, reports say (Guardian, link) and Not All Terrorists Want to Claim Responsibility for Attacks (Fair Observer, link)