The officers testified that he appeared to be pulling a gun.
Despite this, the prosecution did not call any senior officers to testify.
That doesn't mean there will be cases where officers won't testify.
Both officers testified for the prosecution earlier in the trial.
Ms. Martin said all five former chief financial officers would testify.
All four officers testified at the trial, and each told a similar story.
To make their cases, prosecutors are trying to get officers to testify against each other, officials said.
The officers testified that they had thought he was reaching for a gun.
The officer who arrested him testified that he had never ordered the boy to stop.
Other officers testified that they had not talked about the shooting for months or years.