Lieutenant Chase Calhoun
A native of Houston, Texas, and proud Chickasaw Indian, Lt. Chase Calhoun has been in law enforcement for 10 years. Before being selected to join the Homicide Unit, he worked several other units of TPD, such as Gang, Sex Crimes and Robbery.
Calhoun was drawn to the police department because he finds the work extremely challenging, yet rewarding. “Solving difficult or challenging cases and seeing the end result makes me proud.”
Calhoun likes to spend time with friends and family, working out or cheering on all of Houston’s professional sports teams. He also enjoys piloting small aircrafts.
Calhoun was promoted to Lieutenant in August 2020. He now works in Patrol Riverside Division of Tulsa PD.
Lieutenant Justin Ritter
In the twelve years Lieutenant Justin Ritter has been part of the Tulsa Police Department, he has worked in a wide range of units, including Vice, Robbery, Narcotics, Street Crimes and Crime Scene Investigation. He takes pride in making a positive difference in a “crazy world.” He enjoys putting together the puzzle pieces of a homicide investigation and figuring out who the suspect is.
In Ritter’s free time, he enjoys doing yard work, working out and riding mountain bikes and road bikes. Spending time with his wife and two children helps him cope with the stress of the job.
Det. Justin Ritter was promoted to Corporal before leaving Homicide in February 2019. Now he is a Lieutenant, overseeing officers on patrol in the Gilcrease Division, also known as “GID”.
Lieutenant Brandon Watkins
Lieutenant Brandon Watkins joined the Tulsa Police Department in July 1997. After a stint in on partrol, Watkins moved to the Detective Division, where he worked in Child Crisis, Burglary, and Armed Robbery Units before moving to lead the Homicide Unit. He feels fortunate to be working in police work, requiring constant self-asssessment that one doesn’t experience in other jobs. Working in homicide, he fully devotes himself to the singular cause of justice for the victim and their families.
He finds that simply moving helps with the stress of the job – bicycle rides, hiking, and even playing the bagpipes, which he has been learning for the past few years. He also follows his daughter’s softball team as they compete across the country, juggles reading 4-5 books at a time, and cultivates the world’s finest cop mustache. He is married, and he and his wife enjoy the company of a son and a daughter.
Sergeant Nathan Schilling
Originally from Phoenix, Arizona, Sergeant Nathan Schilling now lives on a farm just outside of Tulsa with his wife and three kids. He’s a 14-year-veteran of the Tulsa Police Department. He worked as a Crime Scene Detective for six years prior to joining Homicide two years ago.
Sergeant Schilling likes the challenges of homicide work and enjoys the payoff of seeing criminals brought to justice. When he’s not working, Schilling likes to spend time in the outdoors with his family. Schilling was promoted to Sergeant in October 2019.
Sergeant Dave Walker
Sgt. Dave Walker was born in Aurora, Colorado and raised in St. Louis, Missouri. After college, he joined the Tulsa Police Department in 1982. Before joining Homicide in 2011, he worked extensively in many different units including Patrol, Narcotics, Burglary, Robbery, and SWAT. He has received numerous medals for his outstanding police work, including a Medal of Valor for a fire rescue in 1987, a Chief’s Medal for leading a violent crime task force and a medal for leading an extensive federal narcotics investigation.
Walker believes that family is very important to an investigator. “Family gives you perspective.” He and his wife have raised three sons. Two of his sons work in law enforcement and his third son works as an assistant baseball coach at a university.
Walker has coached several youth baseball teams and believes that youth sports can teach children essential life skills as they reach adulthood. He finds parallels in coaching sports and managing a squad as he continues to lead this group of dedicated men and women of homicide.
Sgt. Dave Walker retired from the Tulsa Police Department on August 31, 2018 after 36 years as a Tulsa Police Officer, the last seven years as the supervisor of the homicide unit. He and his wife now spend time giving back to the community of Tulsa.
Detective Dianna Baumann
Det. Dianna Baumann joined Homicide so she could help people, but says, “I get excited to catch ‘bad’ guys, too.” Before she transferred Homicide in 2010, she spent seventeen years in patrol and five years working in Child Crisis. She enjoys closing cases and helping to offer some closure to the victims’ families.
While working in Child Crisis, Detective Baumann received a Chief’s award for a multi-victim sexual abuse investigation.
Baumann was born and raised in Tulsa. To cope with the stress of the job, Baumann runs marathons and enjoys spending time with her husband and her two children.
Det. Dianna Baumann retired from Tulsa Police Department in May 2017.
Detective John Brown
Detective John Brown is a native of Beggs, Oklahoma. He joined the Tulsa Police Department in 1989, and worked in Burglary, Robbery, Patrol and the Special Investigations Division before joining Homicide in 2012.
In 1994 Detective Brown received of a Medal of Valor for an act of outstanding bravery while working as an undercover investigator in VICE.
Brown was inspired to become a police officer by his brother. He later joined Homicide to work with Sgt. Dave Walker, his long time friend and colleague since the mid-90s. According to Brown, the best and most challenging part of a homicide investigation is interviewing a suspect and getting him to confess to his crime; “getting inside a killer’s mind.”
To relieve the stress of work, Brown spends his free time with family, including his three children. He also loves traveling with his wife Kathy.
Detective Matthew Frazier
Before his career in law enforcement, Det. Matthew Frazier played basketball at Oral Robert University. Often before a game he would talk to the officers at the stadium about what it was like to be a police officer. Inspired to help out in the community, Frazier joined the Tulsa PD where he worked for ten years before joining the Homicide Unit in 2014.
A proud father of two, Frazier spends much of his free time at his children’s sporting events. He met his wife, Nicole, while he was a strength coach for the Colorado Rockies. During a game, he wrote his name and phone number on a baseball and threw it to Nicole in the stands. Since then, he and his wife have shared a love for the game of baseball.
Frazier loves the outdoors and enjoys mountain biking, road cycling and backpacking with friends and family.
On September 26, 2016 Detective Frazier decided to step away from the Tulsa Police Department to pursue another opportunity outside of law enforcement. He enjoys his new pursuits and has more time with his family.
Detective Jeff Gatwood
Det. Jeff Gatwood has always enjoyed helping people, which led him to a career in law enforcement for the past 27 years. “I believe it was my calling.” He strives to seek justices for families, even in this challenging career choice. In 1995, Det. Gatwood received a Medal of Valor for an act of Outstanding Bravery while working as a uniform patrol officer. He worked five years in the Gang Unit and eight years in Robbery, where he gained knowledge that has been instrumental to his developing career. In August 2019, he achieved a career dream by joining Tulsa Homicide Unit.
Outside of work, Det. Gatwood enjoys fishing, hunting, riding his ATV, and spending time with his three daughters, one son, and grandchildren. He and his wife enjoy their four dogs as well.
Detective Mark Kennedy
A former member of the Fugitive Task Force, Det. Mark Kennedy has been with Tulsa Homicide since 2006. Kennedy says, “the excitement of the job and serving the public is what made me want to be a homicide detective.” Kennedy doesn’t mind the pressures of his job because he knows how important it is to his community.
Kennedy is the recipient of numerous awards, including two Medals of Valor. He was awarded the first medal in 1994 while working in VICE, and the second in 2004 while being part of the Northern Oklahoma Violent Task Force. He was also awarded the department commendation medal and the Bergen County New Jersey Apprehension award for capturing two of America’s Most Wanted criminals in 2001.
Mark Kennedy has been married for 27 years and has a 21-year-old son. He spends his down time doing woodwork, working out and spending time with his family.
Detective Ronnie Leatherman
An Oklahoma native, Ronnie Leatherman spent eight years working in Narcotics before transferring to Homicide. He loves working in Homicide because every investigation is unique. He finds the satisfaction of getting a killer off the street helps him push through the challenges of the job. He says, “I love the freedom to chase down bad guys instead of being stuck at a desk all day.”
Leatherman spends his free time traveling with his wife and three children and playing basketball to relax.
Detective Rob McCoy
Detective Rob McCoy joined Tulsa PD in July 1997. Since then he has worked his way through various departments, such as Burglary and the Cyber Crimes Unit, before landing in the Homicide Unit in September 2020.
Det. McCoy’s interest in joining the Police Department began through a childhood friend, whose father was a Trooper and took them on ride-a-longs. He became an investigator to bring justice to victims and their families.
When he’s not solving cases, McCoy enjoys rooting for the Kansas City Royals and Nebraska Cornhuskers. Det. McCoy is a graduate of University of Central Missouri, and has a wife and two children.
In November 2021, McCoy left Homicide and Tulsa PD to become a Crime and Intelligence Analyst.
Detective Max Ryden
Det. Max Ryden is a 20-year veteran of the Tulsa PD where he spent 10 years working the Burglary and Robbery Units before joining Homicide in 2017. Ryden’s interest in law enforcement grew after his first college criminal justice class.
Det. Ryden appreciates the community he serves and wants to find justice for the family of the victims. “I don’t stop thinking about the case until it is finished.”
When not working a case, Ryden enjoys watching a Kansas City Royals game, playing other sports such as golf and tennis, and spending time with his wife and two children.
Detective Reggie Warren
Det. Reggie Warren joined Tulsa Police Department in 1996. He has always had a will to protect. He joined the Homicide Unit in January 2019, and is proud to be able to bring peace of mind to the families who have lost loved ones. Det. Warren believes in leaving work at work, and does not bring it home with him. He enjoys a round or two of golf in his off time to relieve the stresses of the job./p>
Detective Jason White
Being the son of a California Highway Patrolman, Det. Jason White was drawn to law enforcement since he was a child. His interest in homicide came from a high profile case he saw in the news when he was young.
In addition to being a homicide detective, White is the crisis negotiator for the Special Operations Team and a member of the Critical Incident Response Team. He says, “Homicide is more of a lifestyle as opposed to a job.”
White is married and the father of five.
Detective Michael Zenoni
Originally from Harper Woods, Michigan, Det. Michael Zenoni joined Tulsa PD in 1981 before he moved to Homicide in 1999. He was also part of the Special Operation Team (SWAT) for twelve years, and worked in Burglary for one year.
He thrives on the challenges that come with the job. Part of his drive comes from the desire to see the “good guys” win.
Zenoni is married with two children. In his downtime, he enjoys spending time with his family and friends. He played hockey and baseball for many years and now still enjoys watching sports to relax.
Det. Michael Zenoni retired from Tulsa Police Department in August 2019.
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