On 4th November 2019, Chow Tsz-lok fell from the third floor towards the second floor of Sheung Tak car park in Tseung Kwan O. Chow suffered multiple injuries, including a severe brain injury, which led to his death due to a cardiac arrest four days later. It was reported that Chow had a fractured right pelvis from likely a lateral compression, a torn internal iliac artery, a fractured skull base, bleeding in mainly the right half of the brain, and an intra-abdominal hemorrhage. He had no obvious injuries to his hands and feet, nor had he been shot with bullets or was he bruised from a beating. The toxicology results only showed drugs administered after his admission to the hospital. In order for Chow to fall from the third floor, he had to cross a $1.2m$ wall first. Different explanations about the incident have been proposed. These explanations include: 1. Chow approached the wall and fell down accidentally, 2. Chow climbed over the wall on purpose and fell down in a horizontal position by accident and 3. Chow was rendered unconscious and thrown from the third floor by someone else (in other words, Chow was murdered). In this article, I am going to examine the possibility of explanations 1 and 2. Due to lack of evidence, I am not going to discuss about explanation 3.