Albert Einstein protested over the murder of the Albanologist Milan Šufflay on New York Times on May 6, 1931

Milan Šufflay

 As today, 87 years ago, Serbian agents murdered the Croatian great scholar and great albanologist Milan Šufflay. They broke his head with scythe, raided his apartment and stole manuscript "Albanikus Codex", the Third Volume, a great work on Albanian history and culture that was no longer found.

Likely it was destroyed by the organizers of his assassination.
Is written a lot for him, but an interesting event was a public protest for his murder by Albert Einstein and Hirstrish Man (writer and brother of the other famous Thomas Mann) who condemned publicly Belgrade for this crime. Their letter was published on the front page of the famous newspaper "The New York Times".

New York Times, May 6, 1931 edition

Even if you look at the accompanying photograph, his column is the first in the day of May 5, 1931.

The protest letter that directly accused of terrorism the Yugoslav king and the Belgrade court appealed to the Paris-based Human Rights League. For Einstein and the co-writer of the letter, the macabre assassination of the Albanologist was more of an example of the Croatian intelligence's terrorism by the Belgrade-based Serb-centered terrorist regime.