A man identified as Patch was found dead at a house at Windyhill in Arouca on Friday morning.
Police said the incident occurred shortly after 8 am.
Police said Dale Lewis was shot in the head while lying in a bed.
Lewis, according to police, well known to them as he is believed to have been involved in several robberies within the Northern Division.
In another incident, two women were shot while travelling in a vehicle at about 11 am along Hillview, Bye Pass Road, Arima. Police said the car bore over 25 bullet holes on it including the driver's side window and front windshield. The identities of the women and their statuses weren't disclosed up to press time.
A motive is also yet to be established in that shooting.
A third unrelated shooting incident reportedly took place along Maturita Road where a man shot at his relatives.
No serious injuries were reported in this incident. However, police said, the man is said to be going through depression due to domestic issues and believed to have "tripped off" mentally and shot at his relatives.
In a fourth incident, a taxi driver was found dead in his white Nissan Wingroad which was parked along the Byepass Road in Arima. Police said the taxi driver, whose name was not released died from natural causes. He suffered a heart attack.
In a separate incident, the partially burnt body of a woman was found in Lopinot on Thursday afternoon.
The woman was yet to be identified.
According to a police report, at about 1 pm a man was on his property at La Pastora Village, Lopinot, when he noticed his dogs barking at something hidden among some bushes.
Upon checking, the man discovered the body.
A team of officers from the Northern Division and the Homicide Bureau visited the scene.
The body was removed to the Forensic Science Centre in St James pending identification.
Anyone who can help the police with a positive identity and/or the circumstances can contact them at 800-TIPS, 555, 999 or 482-GARY.