Ashley May

USA TODAY

When a man armed with two guns and knife shot Christina Grimmie after a concert in Orlando Friday night, her brother prevented him from doing any more damage.

Mark Grimmie immediately tackled the shooter, who then shot himself. Police spokeswoman Wanda Miglio called Grimmie's brother a hero, crediting him with stopping the suspect from hurting anyone else.

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Unfortunately, The Voice star died about five hours later at an Orlando hospital.

Fans are grieving the loss, and thanking Mark for his quick thinking, knowing the suspect could have hurt more people.

One fan posted a note on Twitter on Saturday sharing a past experience she had with Mark, whom she describes as “truly a hero.”

Mark was close with his 22-year-old sister. He often accompanied her on guitar.

On one of his last birthdays, Christina called him her “best friend in the whole world.”

One of the last photos Mark posted on his Instagram account of the two was a throwback from Thanksgiving. He said “Thankful for good friends good family” in the caption.

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