Freddie Gray case: Officer Caesar Goodson Jr. not guilty on all charges

The Baltimore Police van driver accused of giving a "rough ride" that killed Freddie Gray was acquitted of all charges Thursday by Circuit Judge Barry Williams.

Officer Caesar Goodson Jr., 46, had faced the most serious charges of any of the six officers indicted in Gray's arrest and death last April, including second-degree depraved heart murder. Goodson was also acquitted of three counts of manslaughter, second-degree assault, reckless endangerment and misconduct in office.

His acquittal, which comes after Williams considered the charges for three days, throws the rest of the cases into jeopardy. The other officers charged face similar, but lesser accusations.

Read more: Freddie Gray case: Officer Caesar Goodson Jr. not guilty on all charges

Court filing says Freddie Gray complained of 'bad back'

Freddie Gray, who died after sustaining a neck injury while riding in a police van in Baltimore, told officers he had a "bad back" weeks before his death, according to court documents filed by attorneys for one of six cops charged in the case.

Lawyers for Caesar Goodson, 46, the officer who drove the van carrying Gray, filed the motion seeking the dead man's medical records last month.

The filing suggest lawyers may try to convince a jury that Gray was already injured at the time of his fatal encounter with police.

Read more: Court filing says Freddie Gray complained of 'bad back'