A 28-year-old man, Adamu Mai Bisco, on Monday night allegedly killed his parents and two sisters in Potiskum, Yobe State.
Police confirmed the incident.
Spokesman Toyin Gbadegesin said the suspect used a shovel to kill the victims while they were asleep.
“He was not provoked before carrying out the dastardly act.”
The police attributed the suspect’s action to hard drugs.
Gbadegesin said: “Bisco acted under the influence of hard drugs.”
A source, however, alleged that the suspect killed his parents and siblings because they (parents) threatened to report him to security agents for allegedly being a member of the Boko Haram.
In an SMS to our correspondent, the police spokesman said the offence was committed under Section 221 of the Penal Code.
The message reads: “Culpable homicide contrary to Penal Code Section 221. Offence committed by Adamu Mai Bisco, 28, of Bataiya, Potiskum in Yobe State.
“Apparently under the influence of hard drugs (Marijuana and Tramol capsules), the suspect, without any provocation, as the victims were fast asleep, picked up a shovel and killed his father, mother and two sisters. The incident occurred about 1am.
“Upon receipt of a distress call, police moved in and arrested the suspect. They recovered the exhibits and the suspect is still being interrogated.
“Investigation shows that the suspect is a drug addict, as he confessed to have consumed illicit drugs.
“The bodies were taken to hospital for medical examination. Suspect to be arraigned.”