Rockwall police arrest two in assault case tied to Rowlett officer

Rockwall police say a complaint filed April 19 at a business on the 2800 block of Ridge Road led detectives to an assault case that crossed city lines and ended with two arrests and a Rowlett police officer facing scrutiny.

According to Rockwall police, a female victim reported an alleged assault that happened during the early morning hours at the Ridge Road location, also identified as FM 740. Detectives took over the case and, after what police described as a thorough investigation, obtained arrest warrants for 35-year-old Marquale Pierson and 35-year-old Gabrielle Pierson.

Both were charged with assault causing bodily injury, a Class A misdemeanor. Police said both suspects were arrested on the morning of May 1 and booked into the Rockwall County Detention Center.

The investigation found that Marquale Pierson was a police officer with the Rowlett Police Department when the alleged assault occurred. Later reporting identified him as Marquale Dijon Pierson and said he had been with the Rowlett department since March 23, 2018, according to Texas Commission on Law Enforcement records. Officials also said the alleged assault happened while Pierson was off duty.

That detail gives the case significance beyond a single assault allegation. When a serving officer from another department is tied to a criminal complaint in Rockwall County, the response from both agencies becomes part of the public record. Rockwall police said they appreciated the cooperation and assistance of the Rowlett Police Department during the investigation, and the case remains under review by the Rockwall Police Department Criminal Investigation Division.

Rowlett police later placed Pierson on administrative leave and opened a Professional Standards investigation. For Rockwall residents, the arrests mean the allegation is now moving through the criminal justice process, while questions about conduct, accountability and trust remain centered on how law enforcement agencies handle cases when one of their own is named in the investigation.