A New York City medical school, Albert Einstein College of Medicine, will offer free tuition to its students thanks to a $1 billion donation from the widow of a Wall Street investor. The donation is one of the largest ever made to a US school and will cover the cost of tuition for all students. The school is located in the Bronx, the poorest borough in New York City, and the donation is expected to have a significant impact on the community. The free tuition will be available to all students, including those currently enrolled, starting from August.