Daily Mail reports a mother of two having a video chat with perhaps thousands of her friends died live on Facebook.On December 28, Keiana Herndon, 26, was holding her one-year-old son, Rylee, and streaming on Facebook Live from her friend's house in El Dorado, Arkansas.She was telling her audience how she would like to go back to school, when witnesses say she suddenly began wiping her face and shaking her head, according to KATV.One of her viewers, aunt Barbara Johnson, noticed her niece acting strangely.'She go to wiping her face and shaking her head, and I was thinking, what’s wrong with Kei? We call her Kei. She then, she fell back and then Rylee picked the phone up and started talking and playing and then I hear [gasping noise], then I heard one more ... I didn’t hear nothing else,' the stunned aunt told the outlet.The last thing recorded was Herndon's friend running into the room and calling 911. The devoted mom was rushed to the hospital but it was too late.