DEARBORN HEIGHTS, Mich. — A father accused of killing four siblings Wednesday was convicted in 1992 of murdering his pregnant wife, according to Michigan records.
Since he was released from prison in 2008, Gregory Vicente Green, 49, of Dearborn Heights had no criminal record before Wednesday morning, when police found his wife stabbed and shot in the home with her children — ages 4, 6, 17 and 19 — all dead, according to records from the Michigan Department of Corrections.
The circumstances of the crime scenes in 1991 and Wednesday are morbidly similar. In both cases, authorities say Green called police and waited for them to arrive, then let them into the home where the bodies were found.
On Wednesday, police arrived at the home where they found the two older siblings, a 17-year-old female and 19-year-old male, bound and dead from gunshot wounds in the basement, according to Dearborn Heights Police Lt. Michael Krause. Their mother, who police believe is about 40, was also found in the basement with multiple injuries.
"She had gunshot wounds and slashing wounds from a knife to her face and throat area," Krause said. The woman was transported to Oakwood Hospital in critical condition, Krause said.
Officers checking other parts of the home then found a 4-year-old girl and a 5-year-old girl dead in their beds. Police said it appears the two children died from "intentional carbon monoxide asphyxiation."
"They were asphyxiated in a car with a makeshift tailpipe hose that was redirected into the vehicle," Krause said. "And then they were taken from the car and back into their bedroom."
Officers tried to revive the two young children, Krause said. They were transported to Oakwood Hospital and pronounced dead.
Police are continuing to investigate a motive, but Krause said police believe the killings stem from some sort of marital discord.
Green's wife, Faith Green filed for divorce from him in August, according to Wayne County Circuit Court records. In February 2013, she filed for a personal protection order against him, but it was denied for lack of sufficient allegations.
She also filed for divorce from Green in October 2013, but the case was dismissed for reasons not immediately clear.
The two teens are the woman's children from a previous relationship, but the two younger siblings were his biological children, Krause said. Police are interviewing the suspect and looking into his background.
In 1991, Green stabbed his pregnant wife to death then called police to the Detroit home, according to the Department of Corrections.
"After he did so, he called police, told them what he had done and waited for them to arrive and let them in," according to an email from Chris Gautz, spokesman for the Department of Corrections.
Green pleaded no contest to second-degree murder in 1992 and was sentenced to 15-25 years in prison.
"He was denied parole four times for various reasons, but they all centered around the main idea that he had not shown remorse for his crime, had not gained adequate insight, and had a lack of empathy. ... He completed several cognitive-based programs and was paroled in 2008," Gautz said.
He was discharged from parole in April 2010.
On Wednesday, Maria Miller, spokeswoman for the Prosecutor's Office, said a warrant request has not been received yet.
Dearborn Heights Mayor Dan Paletko, speaking near the home, called the killings “a tragedy in every sense of the word.”
Multiple investigators could be seen removing several items from the home Wednesday. Police and the medical examiner's staff wheeled one of the teen's bodies out of the home as neighbors watched in shock.
Neighbor Karen Radtke said the brutal attack horrified her.
"This is a quiet neighborhood," she said. "This is a very extremely sad situation. I just don't know what provoked him. I woke up and saw police cars and flashing lights everywhere. I came outside and that's when I found out what happened."
Radtke said she regularly saw the children playing outside with the family's dog. She said she recalls seeing the mother as well but said the father worked long hours and was rarely home.
She last saw the father Tuesday outside cutting the grass, Radtke said.
"I'd see her out there once in a while," she said. "But those kids, they were just normal kids — just all playing. They had a little dog.
"The father? You'd never knew he was there until you saw his little car," Radtke said. "How could he do something like this, to kill four kids who were just beginning their lives?"
Radtke and other neighbors said the family just had a birthday celebration last week for one of the youngest children with balloons and ornaments decorating the house.
"A lot of of their friends and family were here," Radtke said. " Her family has to be so devastated. Let's hope she makes it."
Neighbor Ronnie Jones said he found out what happened when his neighbor, who lives across the street, called him around 2 a.m., asking why so many police were outside.
"I went outside and someone told me, 'It's your neighbor. He just killed his whole family,' " Jones said. "This never happens on this block. I'm shocked because they honestly just seemed like a regular family. They would have parties, and they just had two or three picnic things this summer. I've lived here a long time and never saw anything like this."
Contributing: Matt Helms, Detroit Free Press