The following letter was sent to the MIT community today by MIT Chief of Police and Director of Public Safety John DiFava. To the members of the MIT community, In my 46 years of policing, I have seen the good and bad, the brave and cowardly, but what we saw in Minneapolis last week with the brutal killing of George Floyd left me shaken and angry. It breaks my heart to see such cruel violence against another human being, and to know the shame it casts on the vast majority of…