Jamal Khashoggi was the nephew of one of richest men in the world, arms dealer Adnan Khashoggi and was also very famous in the Arab world and elsewhere . Yet when he made the mistake of visiting the Saudi embassy, he was immediately killed, allegedly murdered within 7 minutes according to media reports.
His killers were aware that if they tried to kill him in the United states, or openly in Turkey which he visited the government would immediately take action against the killers leading to a major diplomatic row.
So when they found out that he would be visiting the saudi embassy in instanbul, they immediately sent a hit squad by a private jet
When Jamal Khashoggi entered the Saudi embassy, he thought that it was just a routine visit and told his fiancee to wait outside.
Allegedly he was immediately attacked, and then he realized that he was set up , and the killers were attacking him.
So he started screaming very loudly, and the killers cut his fingers first and then injected him with a drug to silence him before killing him and allegedly cutting his body into 15 parts within 7 minutes.Since they were aware that he would keep the appointment, so the killers were able to plan the attack in great detail and also disappear without being detected.
This exposes the danger and risk of giving any kind of appointment, especially if a person has very powerful enemies. The information could be leaked to the enemies who will be able to plan an attack or in some cases, even a murder.