Steven Pladl's mother makes 911 call to report her son's murders

Police in North Carolina have released a distressing 911 call placed on Thursday morning by a woman saying her son had killed his infant son, his wife - who was also his biological daughter - and the new mom's adoptive father.

Authorities in North Carolina, Connecticut and New York spent the better part of the day investigating the twisted triple-murder suicide that resulted in the deaths of Steven Pladl, 43, his illegal wife Katie Pladl, 20, Anthony Fusco, 56, and the Pladls' seven-month-old son, Bennett.

According to investigators, Steven shot himself to death in Dover, New York, early Thursday morning after murdering his son in Knightdale, North Carolina, and gunning down his daughter-turned-wife and her adoptive dad in New Milford, Connecticut.

Steven's mother said on the 911 call that her son carried out the murders after Katie told him she was leaving him over the phone.

Scroll down for vide

Steven Pladl with his daughter Katie as a baby. The 43-year-old called his mother to say he had killed his and Katie's infant son

Steven Pladl with his daughter Katie as a baby. The 43-year-old called his mother to say he had killed his and Katie's infant son

Steven Pladl, 43

Katie Pladl, 20

Pladl (left) who was charged with incest involving his daughter, whom he married, killed himself in New York on Thursday. Katie Pladl (right), 20, was also found dead along with her adoptive father in Connecticut

'My son just called me and he told me he...oh god, he killed his baby and he's in the house,' Pladl's mother could be heard telling an emergency dispatcher through sobs.

‘His wife broke up with him over the phone yesterday. She's in New York and he told me he was on his way,’ the caller said.

According to the distressed mother, Pladl called her on Wednesday night saying he was going to pick up baby Bennett from her home in Cary, North Carolina, where she had been caring for the infant, to bring the boy to Katie in New York, and that he was then going to return to North Carolina.

‘He killed his wife, he killed her father,’ the woman says through sobs. ‘I can't even believe it's happening...he left the baby dead when he left.’

Tiny victim: The Pladls' infant son was discovered dead by police in North Carolina Thursday 

Steven and Katie got 'married' in a lakeside ceremony in July not long before she gave birth to their baby. They are pictured with her adoptive parents (right) and his mother who attended it despite its incestuous nature

Steven and Katie got 'married' in a lakeside ceremony in July not long before she gave birth to their baby. They are pictured with her adoptive parents (right) and his mother who attended it despite its incestuous nature

Bennett was found after Steven's mother called 911 for a welfare check on the infant

She said her son told her he'd killed the baby left him there, and warned her not to go to the home

Bennett was found after Steven's mother called 911 for a welfare check on the infant. She said her son told her he'd killed the baby left him there, and warned her not to go to the home

She told the dispatcher that her son Steven instructed her to summon police to his home on Earlston Court in Knightdale but warned her that she ‘shouldn't go over there.’

When asked by the dispatcher about the baby’s manner of death, the weeping caller replied that she did not ask her son how he killed his baby boy.

‘I didn’t want to know,’ she explained.  

Police officers who responded to the residence in Knightdale, where Steven and Katie used to live together before their arrest in January, at 9am on Thursday and  discovered the lifeless body of Bennett Pladl, who was born in September 2017.   

Police said other than the child's lifeless body the home was empty. It is the same home Steven and Katie shared before they were arrested for their illegal marriage 

Police said other than the child's lifeless body the home was empty. It is the same home Steven and Katie shared before they were arrested for their illegal marriage 

Police found the child at just before 9am at Steven's home on Earlston Ct in Knightdale, North Carolina

Police found the child at just before 9am at Steven's home on Earlston Ct in Knightdale, North Carolina

Pladl killed his son after picking him up from his mother's house in Cary on Wednesday night, where the child was living in her custody according to WTVR

Pladl killed his son after picking him up from his mother's house in Cary on Wednesday night, where the child was living in her custody according to WTVR

He then drove to New Milford, Connecticut, 600 miles away, and shot dead Katie and her adoptive dad as they sat in a pickup truck, before making his way across the state line and turning the gun on himself. Pictured is the truck Steven was in when he killed himself

He then drove to New Milford, Connecticut, 600 miles away, and shot dead Katie and her adoptive dad as they sat in a pickup truck, before making his way across the state line and turning the gun on himself. Pictured is the truck Steven was in when he killed himself

His biological daughter, whom he illegally married last July, was found dead in Connecticut along with Anthony Fusco.

Pladl is believed to have killed his son after picking him up from his mother's house in Cary on Wednesday night, where the child was living in her custody according to WTVR. 

He then drove to New Milford, Connecticut, 600 miles away, and shot dead Katie and her adoptive dad as they sat in a pickup truck on Route 7, before making his way across the state line to Dover, New York, and turning the gun on himself.  

Get the latest news delivered to your inbox

Follow us on social media networks

PREV Father of Parkland victim wants 10 minutes alone in a room with shooter, not ...
NEXT Why the universe shouldn't exist at all | via @CNNOpinion