Poison - tipped fountain pen and pen firing of bullets found on failed N. Korean assassin . It was anti - North Korea activist , Park Sang - hak , according to North Korean intelligence . Park had been sending anti - Pyongyang propaganda messages across Korea in balloons . He is convinced that this assassination will not be the last attempt on his life .
Poison-tipped ballpoint pen and pen firing poison bullets found on failed N. Korean assassin . Target was anti-North Korea activist , Park Sang-hak , according to S. Korean intelligence . Park had been sending anti-Pyongyang propaganda leaflets across border in balloons . He is convinced that this incident will not be the last attempt on his life .