Search warrant documents made public last month described surveillance video that authorities said showed Chism following Ritzer into a school bathroom, wearing gloves and a hood, then later walking out of the bathroom alone.
A short time later, the video shows Chism pulling a recycling barrel through the school and outside, according to the documents. A recycling barrel was found near Ritzer’s body. Authorities said she was sexually assaulted with a stick.
Chism is charged with murder as an adult. He is charged as a youthful offender on aggravated rape and armed robbery charges, which are pending in juvenile court.
For Wednesday’s arraignment, Superior Court Judge Howard Whitehead was sworn as a special Juvenile Court judge to hear all the charges together.
MacDougall said prosecutors will ask that Chism be tried on all the charges in Superior Court, arguing that the robbery and rape he is accused of were “part and parcel” of the murder. Regan indicated she may oppose that.
The judge said he may send the complicated legal question to the state Appeals Court. A pretrial hearing was scheduled for Jan. 30.