The Nwani family in Asaba, on Sunday night, were shocked as their son, Aniemeka Nwani, who is in his 30s, murdered his two younger brothers, Kingsley and Nwayo.
The Nwani family of Issele-Uku in Aniocha Local Government Area of the state is an independent marketer of petroleum products in the Delta capital.
The News Agency of Nigeria gathered from a family source on Monday that Aniemeka killed his brothers, one of whom was an undergraduate, with a machete.
He said, however, that the suspect had been a patient at a psychiatric home in Uselu in Edo.
He said the widow, a Permanent Secretary in the Delta civil service, had returned from Canada where her daughter lives, two weeks ago, after a medical check-up.