After receiving an associate degree from Honolulu Community College in Hawaii, Demetrick Pennie earned induction into the Phi Theta Kappa Honor Society and completed his bachelor’s degree in criminal justice at Midwestern State University. He went on to become a magna cum laude graduate of Prairie View A&M University with a master’s degree in counseling. Demetrick Pennie later returned to school for a doctorate in higher education at Texas Tech University.

Professionally, Demetrick Pennie spent four years in the U.S. Army as an artillery specialist stationed at the Schofield Barracks in Hawaii. After completing his term of service, he became a police officer with the Dallas Police Department.

Now recognized across the country for his work as an advocate for law enforcement, he serves as the president of the Dallas Fallen Officer Foundation and as the executive director of the Texas Fallen Officer Foundation. Drawing on an unconventional background, he seeks to increase interest for these organizations while supporting their growth. He has also spoken numerous times on television, radio, news casts and at events in Washington, D.C., New York, and Chicago and other cities. 

As a police sergeant, Pennie is revered across the country for his perspectives on police safety and his unconventional methods to protect the interests of law enforcement officers across the country. He is often recognized as visionary because he identified the “radicalized” nature of the Black lives Matter Movement when no other political or police leader would condemn their actions following their numerous protests across the country. Pennie is thought to have single-handedly destroyed the legitimacy of the movement when he filed a federal lawsuit against Black Lives Matter and other political leaders that incited violence against police officers through their anti-police rhetoric including President Barrack Obama.