and I was just watching the series last night.

Professor Snape is gone but not forgotten.
After news broke that Alan Rickman passed away from cancer, his Harry Potter stars turned to social media to react and pay tribute to their fallen friend. Daniel Radcliffe AKA Harry Potter himself, wrote an emotional post on his Google Plus page that highlighted how wonderful the British actor was despite what people might have assumed given his character's intimidating persona.
"Alan Rickman is undoubtedly one of the greatest actors I will ever work with. He is also, one of the loyalest and most supportive people I've ever met in the film industry. He was so encouraging of me both on set and in the years post-Potter," he wrote. "I'm pretty sure he came and saw everything I ever did on stage both in London and New York. He didn't have to do that. I know other people who've been friends with him for much much longer than I have and they all say 'if you call Alan, it doesn't matter where in the world he is or how busy he is with what he's doing, he'll get back to you within a day.'"
http://www.eonline.com/news/731209/alan-rickman-dies-harry-potter-stars-react-to-the-tragic-news