'The Voice' singer dies in US shooting

Singer Christina Grimmie, who starred in NBC's "The Voice," died Friday after being shot at a concert in Orlando, Florida by an unidentified gunman, who then killed himself, police said.

The 22-year-old Grimmie had performed with the group Before You Exit at Orlando's Plaza Live Theater and stayed after to sign autographs and sell merchandise.

A man, who was armed with two guns, walked toward her and shot her, police said.

The motive of the gunman, who was not identified, was unclear.

"We don't know if he was just a crazy fan that followed her on Twitter or on social media. We really don't know," police spokeswoman Wanda Miglio said at a news conference.

The shooting seemed likely to add fuel to the long simmering debate over gun laws in the United States, where guns were used in more than 11,200 murders in 2013.

Grimmie, who competed in the sixth season of "The Voice" in 2014, released her debut EP "Find Me" in 2011.