[2] Although initially brought before a military court and threatened with the death penalty, Maukar received a pardon from then President Sukarno.

[7] A year prior to the incident, Daniel and his brother Herman Maukar were approached by Samuel Karundeng, a close colleague since the Japanese occupation of Indonesia.

It wasn't until February 1960 in Bandung that Herman explained the goals of the movement to Daniel, revealing that Samuel was part of a group called "Manguni," which aimed to "demand national peace.

[9] Previously, Sam had attempted to carry out economic sabotage, collect intelligence data for Permesta, provoke clashes between groups, and conduct military operations.

[10] Upon Daniel's return from Egypt, where he had been training to fly a MiG-17 fighter jet, Herman actively tried to convince him to join the Manguni group, openly expressing his intention to sabotage vital objects belonging to the Republican government.

[9] In a meeting attended by Herman on 6 February 1960, the Manguni group had previously agreed to kidnap government figures, with Minahasan youth as the executors.

Their targets included President Sukarno, Minister Djuanda, Major General Gatot Subroto, Chaerul Saleh, Surjadarma, Mochamad Jasin, and former Javanese student soldiers.

[7] To the Manguni Council, Daniel was a perfect candidate for recruitment due to his resentment against the current government, outstanding flying skills, and background as a devout Christian and Minahasan youth.

In a meeting, Colonel Sukanda Bratamenggala stated his readiness to deploy two companies of armed troops which would later be led by Major Bunjamin.

[9][1] In the event that Singapore wasn't an option, Daniel was "told to jump to Malangbong" according to Sam in court documents.

To Sam, Malangbong was the codename for the "base of operations for Battalion 3 May" which was established in Manado in 1950 and had many members from Minahasa, Daniel's ancestral homeland and the center of the Permesta movement.

[1] Eventually, 9 March 1960 was chosen for the execution date as it coincided with Daniel Maukar's solo training schedule, thereby reducing the risk of suspicion by other AURI members.

Being the last in order, he ignored the task of flying training to the south of Jakarta and deviated towards the Bataafse Petroleum Maatschappij (BPM) tank.

At 12:00, eyewitnesses reported hearing a deafening sonic boom as a jet flew low directly above Central Jakarta.

[13][11] However, Sukarno was not present during the shooting as he was attending a session at the National Council (Dewan Nasional), a mere 20 meters from the Merdeka Palace.

[14] Alarmed, members of the National Council were stirred by the sound of the low-flying jet, prompting President Sukarno to calm them down in Dutch.

[4] Running out of fuel and with no other options, at 14:00,[8] he had to take an emergency landing in a paddy field in Leles, Garut, notable for being the center of the Darul Islam rebellion.

[1] After crash landing, Daniel's initial plan was to seek protection from Darul Islam, who were equally hostile to Sukarno.

Minister of Information Maladi, in a press statement on 14 March 1960, revealed that a number of weapons and documents planning the assassination of the head of state had been found.

[6] In a court session on Tuesday, 21 June 1960, Daniel's actions were stated to be related to Permesta, which was still engaged in guerrilla fighting in North Sulawesi at that time.

[7] Daniel stated that he did not intend to kill Sukarno as he had made sure he did not see the yellow flag being raised at the palace, which would indicate that the president was present.

[12] In the end, on 16 July 1960, based on evidence collected up until 14 March 1960, that being his aircraft and the weapons used by Daniel,[6] he was found guilty by the Air Force Court Martial and sentenced to death for his actions.