"The most important thing is we all remember five demands not one less, even though we are all exhausted, we should not give up", said Kelvin, a 22-year-old information engineering graduate.
Chow's death is expected to spark fresh protests and fuel anger and resentment against the police, who are already under huge pressure amid accusations of excessive force as the city grapples with its worst political crisis in decades. "I think the whole of Hong Kong is very disappointed in the police, and does not have any expectation towards them", Lai says.
Although the cause of his fall has not been determined, it deepened anger against police, who have been accused of heavy-handed tactics including widespread use of tear gas and pepper spray since protests demanding democratic reforms started in June.More news: Paul George Expected To Debut With Clippers By Nov. 14
Protesters have claimed that police blocked an ambulance from reaching Chow, and in doing so delayed the emergency medical response.
The government expressed "great sorrow and regret" over Chow's death despite undergoing surgery and treatment. Police are still investigating the case. There have been previous reports of deaths by suicide, and a man fell to his death while hanging pro-democracy banners on a building. Last month, police shot two teens with live bullets in separate incidents but both recovered.
At the University of Science and Technology, Mr Chow's colleagues staged rallies this week and on Thursday disrupted a graduation ceremony. The college was holding its graduation ceremony Friday morning, and university head Wei Shyy paused the proceedings to announce Chow's death and observe a moment of silence.More news: Ambush on mining company convoy kills 37 in Burkina Faso
Protesters held a memorial for Chow before a lunchtime rally in the city center Friday, and calls for "flash mob"-style demonstrations marking his death were trending on online protester forums".
Students swarmed the hospital in support of the man, surnamed Chow, to hold prayers and gatherings and at universities across the former British colony. Hong Kong is bracing for a weekend of rallies that have been planned in areas across the city, beginning Friday.
The protests, ignited by a now-scrapped extradition bill allowing people to be sent to mainland China for trial, have evolved into wider calls for democracy, posing one of the biggest challenges for Chinese President Xi Jinping since he took charge in 2012.More news: Italy introduces mandatory climate change lessons in schools
Protesters have issued a list of demands, including fully free elections to choose the city's leader and an investigation into alleged abuses by police. More than 3,300 people have been arrested and Beijing has indicated it may tighten its grip to quell the unrest.