reporter: both jennifer and james crumbly have pleaded not guilty to the charges, and their attorney took issue with the time line of events laid out during their arraignment. the facts that have been presented by ms. mcdonald, her office, have been cherry-picked to further her narrative to make an example of mr. and mrs. crumbly. none of this should happen. a 15-year-old should not be sitting in jail facing life in prison, and it could have been prevented. reporter: the prosecutor is still investigating the school s role in the events leading up to the shooting. i think it s time we stop talking about how terrible it is we have school shootings and look to see what we can do to actually prevent them from happening again. reporter: the michigan attorney general has also criticized the oxford school district s hiring of a third-party to investigate the shootings and offered to help conduct a review of the events that day. meanwhile, a community is still grieving the death of