Authorities initially said the man, who was killed during the attack, was suspected of being a member of the Jemaah Islamiah (JI) militant group.
"The suspect is not affiliated with any terrorist groups and has no connection to JI. He is not involved in terrorism," Inspector-General of Police Tan Sri Razarudin Husain was quoted as saying by Bernama on Saturday.
Husain noted, however, that the suspect's father was a member of JI.
The motive behind the attack has not yet been determined, he said, according to Bernama.
JI, which aims to establish an Islamic state in Southeast Asia, is accused of orchestrating some of the deadliest militant attacks in neighbouring Indonesia, including the 2002 bombings of Bali nightclubs that killed more than 200 people.
