A murder trial is underway in Collin County. The case involves a stabbing incident at a high school track meet. Further details about the incident are available from previous trial coverage.

The defendant, a teenager from Frisco, has admitted to the crime. Body-worn camera video of the arrest was presented in court. Readers seeking more information can refer to the source for additional coverage of the trial, including previous days' events.

The trial continues, with the defendant accused of a fatal stabbing.