The Anekal police arrested a 19-year-old murder accused, who allegedly attacked a police constable in a bid to escape arrest on the outskirts of the city on Saturday.
The accused, identified as Akash, and four of his associates, including two juveniles, allegedly hacked a 24-year-old hardware shop salesman, Hemanth, to death on July 31.
The prime accused in the murder case is a 17-year-old PU student who was heading the gang. He wanted to kill someone to prove his point to his father and targeted Hemanth who was returning home from work, said the police.