The loss of someone you loved, but didn't know

Two and a half weeks ago, an idol and a hero of mine from a band I grew up listening to throughout my teens passed away. I found out when I woke to a message from a good friend of mine saying "I'm sorry for your loss". My initial reaction was full blown panic, had I missed something that happened closer to home? What was going on? I wasn't really sure. I immediately jumped on social media. I still didn't understand what was going on? I saw a post mentioning LP (Linkin Park). My heart sank, I googled "Linkin Park". Read more about 'The loss of someone you loved, but didn't know'...