A 17-year Arlington police veteran accessed law-enforcement-only databases to tip off a steroid dealer from whom he had been buying steroids for himself and other officers for years, according to federal documents released Wednesday.Thomas S. Kantzos, 45, was arrested by the FBI on Tuesday, the same day that David Vo, another officer under investigation, died in an apparent suicide.Kantzos, who had been federal custody, made an initial appearance in federal court in Dallas on Wednesday afternoon before U.S. Magistrate Paul D. Stickney.He was ordered released on pretrial supervision with certain conditions. Wearing a black T-shirt and shorts, Kantzos was told that he must give up his weapons, law enforcement license and passport and refrain from taking drugs.Kantzos is charged with unlawfully providing sensitive information by exceeding authorized access to a protected computer.According to a federal affidavit, the investigation began in January after a man arrested for distributing anabolic steroids told authorities that he had sold steroids to Kantzos for five or six years.The man, referred to in the affidavit as the “CW,” or cooperating witness, told investigators that on at least one occasion, he delivered about 20 human growth hormone kits to Kantzos while the officer was on duty, in uniform and in his patrol car.Through that interview and a search of the informant’s phone, investigators determined that Kantzos had on multiple occasions solicited anabolic steroids for himself and others, including colleagues in the Arlington Police Department.“He often collected money form the other individuals before he obtained the steroids from the CW, but on some occasions he fronted the money for the purchases,” the affidavit states.It says Kantzos was aware that the cooperating witness was obtaining and distributing anabolic steroids through the mail.He also told authorities that Kantzos had given him sensitive information obtained from law enforcement databases.“Access to those databases is restricted to authorized law enforcement personnel only,” the affidavit states. “In each instance, the CW asked Kantzos to query a name or a license plate for the CW’s personal use.”One of the inquiries, the witness told authorities, occurred in late 2011 when he saw a pickup parked down the street from his house and a familiar-looking man in the driver’s seat with a laptop computer. The witness planned to deliver steroids to an Arlington officer that day and thought he might be under surveillance.The affidavit says Kantzos ran the license plate and told the informant that a police officer on a drug task force owned the truck. Database records confirmed that Kantzos ran a “stolen vehicle investigative inquiry” on a law officer’s pickup on Dec. 29, 2011, the affidavit states.Based on the information from Kantzos, the cooperating witness discovered a tracking device on his vehicle and began lying low for the next month or so. During that time, the affidavit states, the witness and Kantzos talked about the tracking device and police surveillance.“Still laying low?” Kantzos texted to the CW on Feb. 16, 2012, according to the affidavit.“Yeah got new way of doing you still need?” the CW replied.“Let me ask … But [name redacted] was asking bout it too,” Kantzos texted back, according to the affidavit.The affidavit says that Kantzos knew the CW was illegally distributing drugs and that he provided restricted information to “aid and abet that drug dealer’s illegal steroid distribution activities.”On Tuesday night, Arlington police put out a news release about the arrest of Kantzos and the death of Vo, also a subject of the joint investigation by the FBI and Texas Rangers.Vo, who had been with the department for three years, was arrested last weekend and released on the pending charges. Police say he took his own life Tuesday afternoon in the 2400 block of Park Run Drive near his home.Vo and the city were sued in 2011 after the officer used his Taser twice on an African-American man inside Rack Daddy’s pool hall while pursuing a car theft suspect who was white and nearly 70 pounds heavier.City officials settled the federal lawsuit for $25,000.Arlington police have also identified a third officer who is being questioned in the investigation and has been placed on administrative leave.The Star-Telegram is not identifying the third officer, who has also been with the department for three years, because he has not been arrested. Staff writer Bill Miller contributed to this report.
Deanna Boyd, 817-390-7655 Twitter: @deannaboyd