The tragic incident happened at his Greatwood, Texas home on Friday.
A Nigerian Doctor in the United States, Dr Ben Okigbo, has shot himself to death.
The tragic incident happened at his Greatwood, Texas home on Friday.
Okigbo reportedly shot his wife, Theresa who was a licensed nurse before killing himself.
According to Sugar Land police in Texas, the deceased also attempted to kill his 21-year-old sons by strangling them after shooting his wife.
The sons survived the attack with injuries that are not life-threatening.
"On Friday morning, a daughter, who doesn't live at home, went there after she became concerned. She wasn't injured.
"Someone in the house called 9-1-1 Friday morning around 10 a.m. from home in the 1500 block of Brookstone Lane. When officers arrived, they found the couple's bodies inside. They were both in their 50s.
"A neighbour said they were originally from Nigeria but had lived in the Greatwood home for about 20 years. She said she spoke to the wife a few days ago and nothing seemed out of the ordinary," the police said.
A Whatsapp message on the tragedy obtained by SaharaReporters read, "At sunrise, this cold Saturday, Dr Ben Okigbo, a medical doctor in Houston, pulled up a handgun and fatally shot his wife. His wife was a nurse too. A few seconds later, he turned the gun on himself.
"These hours, their three children are dealing with the tragedy of losing their parents at home. We will never know why Dr Okigbo, decided to kill his wife and commit suicide after that.
"It's my understanding that Dr Okigbo was originally from Idumuje Unor while his wife was from Akwukwu Igbo, both towns are in Delta State of Nigeria."