Dotson said the teen who died "was no stranger to law enforcement" but didn't elaborate.

Court records show that Myers was scheduled to stand trial in November for unlawful use of a weapon and resisting arrest. This summer, Myers was a passenger in a car involved in a high-speed car chase in St. Louis, officials say. The car crashed just after midnight on June 27 in the 1100 block of South Grand Boulevard. Myers got out of the car, and a police officer yelled at him to stop. Instead, Myers ran off and tossed a gun into a sewage drain. Police caught him nearby and recovered the gun, a loaded .380-caliber pistol.

Myers was jailed for a few days. Then, in early July, Myers was released on bail after posting $1,000 cash bond. His bail originally was set at $30,000 by Judge Rex Burlison but was dropped to $10,000 after Judge Theresa Counts Burke agreed with a defense motion that it was excessive. Burke allowed Myers to post 10 percent of that in cash. A second judge upheld that bond amount later.

On July 8, as a condition of bail, Myers was activated on electronic monitoring for house arrest, court records say. He could leave his home in the 4200 block of Castleman Avenue for work, school, court appearances, meetings with attorneys and meetings with the private monitoring firm.

That firm, Eastern Missouri Alternative Sentencing Services, Inc., was supposed to monitor Myers' movements and contact the court if he violated the rules. Nothing in the court file indicates any violations. Susan Ryan, a spokeswoman for the St. Louis circuit attorney's office, said prosecutors weren't told of any violations.

Myers' attorney, Peter Cohen, said going out to get a sandwich would have been OK under the conditions of the electronic monitoring. He said the ankle monitor is standard in most cases for anyone facing a gun charge in the city who is allowed out on bail.

Myers' trial was set for Nov. 17.