Egypt's prosecution decided on Thursday to detain a man suspected of murdering an Alexandria liquor storeowner for 15 days pending investigation, Al-Ahram Arabic news website reported.
Investigators said the man confessed to killing Youssef Lamei after viewing surveillance footage from the crime scene, saying Lamei had continued to sell alcohol despite being warned against it multiple times by the suspect, Al-Ahram Arabic website reported.
Egypt's police arrested the suspect early Wednesday morning.
Alexandria's police investigations team was able to identify the 48-year-old suspect only 24 hours after the gruesome attack.
The man was arrested while hiding in a building in the vicinity of Al-Montazah police station east of Alexandria.
The arrest came after police reviewed surveillance camera footage taken by neighbouring shops in Khaled Bin El-Waleed Street, one of Alexandria's busiest commercial streets.
Lamei died immediately after the attack at the scene of the crime.
A video of the attack that went viral shortly after the incident shows the suspect, a bearded man wearing a yellow coat, slash the storeowner's throat twice with a knife from behind while the victim was smoking a hookah in front of his store.