Reserve Police Officer David Ruiz was a United States Navy Veteran. He served with the Dallas Police Department for 32 years and then patrolled as a reserve officer for four years. During his time as a full-time officer, Ruiz was honored with the Medal of Valor. Ruiz died from complications as the result of contracting COVID-19 in the line of duty.

David was known for his smile and his willingness to help others.

He was survived by his wife, three children, and three stepchildren.