Mark Grimmie On Losing Sister Christina Grimmie: 'I Don't Know What I'll Do Without Her'

Mark Grimmie is speaking out after the sad death of his younger sister, Christina

He opened on his personal Facebook, sharing his feelings after everything.

“Christina was more than my sister,” he wrote (via People). “She was a partner in life. A superstar. A goofball. Introverted. And a friend to everyone. Genuinely.”

Mark added, “But above all…she was my baby sister. She loved the Lord and her family and was always there for me and I honestly don’t know what ill do without her.”