Police in the Northern Marianas believe they know why a gunman on Saipan killed four people, including two children, and then himself.
The man, who police won't yet name, opened fire at a shooting range on Friday and then went to the Last Command Post Park where he shot at a group of South Korean tourist, injuring six of them before killing himself.
The police say they've established a possible motive but won't release details until this is confirmed.
Our correspondent in the CNMI, Mark Rabago, says police think the gunman had laid out a plan for the attacks.
"Police also said that before he shot himself he tried to burn all his identification cards. They say it was a pre-meditated plan. He planned everything."
Our correspondent in the Northern Marianas, Mark Rabago.