Barnett Walker retired as one of the most decorated Senior Master Sergeants in the Air Force. He graduated Summa Cum Laude in 2001 from Columbia College with a Bachelor of Arts Degree in Criminal Justice. Barnett received his Juris Doctor from Southern Methodist University in 2004. While attending law school he won the 2002 National Criminal Moot Court Championship, 2nd Best Brief Award, 2003 National Criminal Moot Court "Best Oralist" Award, Order of Barristers, and Board of Advocates "Masters Level" honors. He was a student member of the Mac Taylor Inn of Court, Director of Judging for the Board of Advocates, and Vice-President of the Texas Trial Lawyers Association. He served as a student attorney for the Legal Aid of Northwest Texas and interned with the Collin County District Attorney before joining this office full-time in Aug 2005. He and his wife Jackie have two children, Barnett and Sabrina.

Coleman Sylvan graduated in 2001 with a Bachelor of Arts in Political Science from Furman University. He received his law degree from Southern Methodist Dedman School of Law. While attending law school, he volunteered at the Dallas Public Defenders Family Division. He began his career with the Collin County District Attorney's Office in September 2005 as a misdemeanor prosecutor.

Investigator Dale Dowdy began his law enforcement career in 1997 serving with the Paris Police Department Reserve’s Unit. After attending the Texoma Regional Police Academy in 1998 and graduating as Valedictorian and recipient of the Woody Blanton Award, he served with the Denison Police Department until August 2004 at which time he joined the Collin County District Attorney’s Office. Investigator Dowdy was initially assigned to the Family Violence Unit prior to him joining his present trial team. Preceding his law enforcement career, he spent 20+ years in the private sector of retail with 12 of these years owning various businesses in an entrepreneurial capacity.

Investigator Robin Laughon joined the District Attorney's office in November, 2003. Ms. Laughon graduated with a Bachelor's degree in Social Work from Southwest Texas State University in 1998. She was employed as a Supervision Officer with the Collin County Adult Probation Department for three years, where she managed a caseload of more than one hundred clients. Ms. Laughon received her peace officer certification from the Collin County Law Enforcement Academy in July, 2003, receiving the Director's Choice Award for best overall performance as a cadet.

Julie Markham received her Bachelor’s of Music Degree with a Major in Vocal Performance from Baylor University in 1982. Before joining the Collin County District Attorney’s Office in 2003, Mrs. Markham was a stay at home mother for her four sons. She presently works as a Misdemeanor Secretary assigned to County Court at Law No. 2 and County Court at Law No. 5.