Two, including an 18-year-old youth, were found murdered in two separate cases in different parts of the city on Wednesday.
One of the deceased, identified as Tony Vincent, was a resident of Siddartha Nagar in Gangammanagudi and pursuing hotel management course at St. Joseph College.
Vincent went missing since Monday morning after he left home for college. The murder came to light when passers-by noticed the body in a bush in HMT layout. Assailants bludgeoned him to death and stabbed him repeatedly before dumping the body in the bush.
Police identified Vincent from the Adhaar card found in his pocket.
In another incident, a 24-year-old rowdy was stabbed to death near Yeshwanthpura Railway Station on Wednesday. The deceased, Ravi, was involved in several criminal cases. Police suspect rivalry as the reason behind the murder.