By Erich Wagner (File photo)

Attorneys in the trial of Arlington County sheriff’s deputy Craig Patterson made their closing arguments Thursday morning, but after five hours of deliberation, jurors had not agreed on a verdict.

Patterson, a 17-year veteran of the sheriff’s office, is charged with murder and the use of a firearm in the commission of the murder in the May death of 22-year-old T.C. Williams graduate Julian Dawkins. Patterson maintains that he acted in self-defense.

The jury will reconvene Friday at 9 a.m.