CHRISTCHURCH, New Zealand (AP) — The man accused of killing 51 people at two Christchurch mosques on Friday pleaded not guilty to all the charges filed against him.

Brenton Tarrant smirked as his lawyer, Shane Tait, entered the not guilty pleas, but otherwise showed little emotion during the hearing at the Christchurch High Court.

The 28-year-old Australian appeared via video link from a small room at the maximum security prison in Auckland where he's being held.

The courtroom was filled with 80 survivors and family members, while about another 60 watched the proceedings on video in an overflo...