China is reportedly closely monitoring the probe into North Korean Kim Jong Nam, who was assassinated at Kuala Lumpur airport in Malaysia. Jong Nam is the estranged half-brother of North Korea's leader Kim Jong Un. Authorities said Jong Nam was attacked from behind and was poisoned, causing him to feel dizziness. South Korea referred to the incident as terrorism and claimed that North Korea's government carried out the attack. North Korea's neighbor and ally China is now looking closely into the investigation for answers.