The footage, reviewed by local media, showed the woman walking home with her ex-boyfriend shortly after leaving work at around 6pm on May 14.
The two had reportedly exited a building along Kirichwa Road and were seen walking side by side before the situation suddenly escalated.
According to the footage, the 22-year-old man unexpectedly turned on the woman in the middle of the road, attacking her in full view of pedestrians and motorists.
The confrontation caused panic among bystanders, with passing vehicles narrowly avoiding the pair during the struggle.
Witnesses said the woman attempted to flee after the initial attack, running toward a nearby pharmacy in search of help.
Surveillance cameras captured her stumbling into the premises as the suspect closely followed behind.
Inside the pharmacy, the horrifying incident continued as the man allegedly stabbed the woman multiple times after she collapsed to the ground.
Staff and customers inside the shop were left in shock as the attack unfolded within seconds.
Emergency responders were later called to the scene, but the woman succumbed to her injuries.
Police officers from the area also arrived shortly afterward and launched investigations into the incident.
The disturbing attack has sparked renewed concern over rising cases of gender-based violence and intimate partner attacks in the country.
Residents and business owners in the area described the incident as traumatic, saying it happened during one of the busiest hours along the road.
Some witnesses expressed frustration that the attack occurred in broad daylight despite the presence of members of the public.
Others called for stronger protection measures and quicker intervention systems for victims facing threats from former partners.
Investigators are expected to rely heavily on the CCTV footage collected from nearby buildings and businesses as part of the ongoing probe.
Authorities have not yet released full details surrounding the motive behind the attack, although preliminary reports indicate the suspect and the victim had previously been in a relationship.