The police say they are investigating the murder of Devon Da Silva, 19 years, of Sisters Village, East Bank Berbice, which occurred at about 0215h today at his residence.
Investigations, police said, revealed that Da Silva was asleep at home, when he was attacked and fatally stabbed by a man.
The suspect was later arrested and is believed to have ingested a poisonous liquid. He has been admitted a patient at the New Amsterdam Hospital and is under police guard, police said.