NEWYou can now listen to Fox News articles! This story discusses suicide. If you or someone you know is having thoughts of suicide, please contact the Suicide & Crisis Lifeline at 988 or 1-800-273-TALK (8255).Catalina Mancera thanked supporters in an emotional message as she celebrated the unborn child she shares with late Dallas Cowboys defensive end Marshawn Kneeland.In November, Texas Department of Public Safety and the Frisco Police Department confirmed that Kneeland died from a self-inflicted gunshot wound following a police chase in Texas. The 24-year-old recorded his first NFL touchdown just days before his death.Mancera recently held a baby…