February 19 2015: Comedian, writer, and producer Harris Wittels passed away from an apparent drug overdose. The 30-year-old was a producer on NBC's Parks and Rec and the brain behind the popular and hilarious @humblebrag Twitter account (and eventual book). In his years as a comedian, he toured with the likes of Louis CK and Aziz Ansari, and was a frequent guest on the podcast Comedy Bang Bang.

Wittles talked openly about his struggles with drug addiction, but in a stand up set the night before his death, he told the audience that he was sober and in a good place.

His loss was mourned by countless celebrities and comedians who had worked with him in the past, including Parks and Rec colleague Amy Poehler."