When they were fleeing south, terrified by the attack of the People's Army in July 1950, the south Korean puppet army and police killed more than 2 000 inhabitants including those related to the Association of the Protected between July 22 and 26.

The Jinju Association started the unearthing of remains on Ryongsan Hill in Myongsok-myon, Jinju City of South Kyongsang Province, together with a joint investigation team involving different civic and public organizations in February 2014.

At that time the team discovered remains of 39 people and many bullets and cartridges.

The investigation team decided to do unearthing again 20-odd meters away from the site of the first unearthing, according to the testimonies made by residents and bereaved families that remains of 718 people are buried in the three valleys of Ryongsan Hill.