Police are still investigating a motive for the attack, which spanned Taipei’s main station, an underground shopping district and another metro stop, but have “preliminarily” ruled out terrorism.
Officials said immediately after the rampage that the attack was “deliberate” but that the motive was unclear.
Police said they believe Chang had acted alone and planned to “randomly kill people”.
Chang had served in the military but was discharged over driving under the influence of alcohol, according to police, who said he was wanted after he failed to report for reserve military training.
Chang, according to police, was jobless and relied on his family for financial support.
However, his parents did not respond when asked if he had likely used money they had given him to buy weapons or whether they would compensate victims.
Chang rented an apartment in the district near the main Taipei station in January and scouted the area in advance, officials said.
Investigators also found searches for “random killings” on Chang’s iPad, including material related to a Taipei metro stabbing in 2014 when a man killed four people.
https://www.channelnewsasia.com/east-asia/taiwan-metro-attack-suspect-parent-apologise-deadly-stabbing-5691836
