Michael Stiff and Christina Garza Individually, and as Representatives of the Estate of Nicholas Christopher Garza, And as Next Friend of D.A.G., N.Y.G., and W.J.S., Minors, and Paula Lylia Garza, as Legal Representative and Independent Administrator of the Estate of Nicholas Christopher Garza v. Kaufman Independent School District, Marion Deadmon, Leonard Deadmon and National Mentor Healthcare, LLC D/B/A Texas Mentor Network