The blogger’s last Instagram post showed her birthday party in what looked like a private home in Tehran. The five women pictured do not have their heads covered. Piperno wrote, “These years have been the most beautiful of my life, the most lived, where I learned and unlearned so much, where I met wonderful people and friends, and where I discovered the true beauty of our planet. The world and its people have given me more than I could wish for, day after day, year after year.”