Einstein's note defending murder-accused friend up for sale
A US-based auction house has put on sale a letter by Albert Einstein defending his friend Friedrich Adler, who assassinated the Austrian Minister-President during World War I. "Adler proved himself a goodhearted, conscientious man and it is my heartfelt desire to intercede for him," the physicist wrote to Michele Besso, the only other person credited in Einstein's paper on relativity. 