The brother of singer Christina Grimmie who was shot dead as she signed autographs after a concert in Orlando has broken his silence with a touching tribute on social media.
Marcus Grimmie shared several photographs of him with the 22-year-old singer on Facebook and said he was "blown away" by the prayers and support from people since the news of her death.
He wrote: "Christina was more than my sister. She was a partner in life. A superstar. A goofball. Introverted. And a friend to everyone. Genuinely. 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."
Grimmie, who rose to fame after appearing on the US version of The Voice, was signing autographs after her performance at The Plaza Live in Orlando, Florida when the gunman - named by police as Kevin Loibl - opened fire.
Marcus immediately tackled Loibl who then shot and killed himself during the struggle. Orlando Police Chief John Mina praised Marcus' "very heroic actions" for preventing further casualties.
Police believe Loibl, who was carrying two handguns, two loaded magazines and a hunting knife, came to Florida specifically to attack her. It is not believed that he knew Grimmie personally.
Marcus encouraged fans to share their photographs and memories of Christina in the comments for him to read.
Elyse Bishop posted: "I would get so excited when she would release new music. I cried when she followed and replied to me on Twitter. I know I didn't have the chance of meeting her in person but I had dreamed of it."
Venetia Lim posted a picture of herself with Christina and wrote: "Personally I liked how she said my name was cool when I first met her. I'm so thankful to have met my role model and hero and told her that before she left."