- Gregory Dennis, 54, posted his bail of $250,000 after court on Monday morning
- Dennis was arrested Thursday for allegedly killing his wife, Susan Winters
- Winters, 48, died on January 3, 2015, at the couple's home in a Las Vegas suburb
- Coroner ruled that she killed herself with medication and anti-freeze
- Later evidence surfaced suggesting Dennis had financial motive to kill Winters
A Las Vegas psychologist who 'poisoned his wife by giving her anti-freeze to pocket her $2million inheritance' has had his bail set at $250,000.
Gregory Dennis, 54, was arrested on charges of killing his wife, Susan Winters, in an alleged suicide-murder plot where the psychologist would gain a hefty inheritance.
Dennis, who runs a mental health clinic in Boulder City, Nevada, posted his bail quarter of a million dollars after his first court appearance in Henderson on Monday morning.
Gregory Dennis, 54, posted his bail of $250,000 on Monday. The Las Vegas psychologist was arrested on charges for 'poisoning his wife by giving her anti-freeze to pocket her $2million inheritance' on Thursday
Dennis (left) runs a mental health clinic in Boulder City, Nevada, was booked at the Henderson Detention Center on Thursday for the slaying of his wife, Susan Winters (right)
He was booked at the Henderson Detention Center on Thursday for the slaying of his wife, who was a lawyer, according to the Las Vegas Review-Journal.
Police apprehended Dennis during a traffic stop on Thursday morning following a 'lengthy' homicide investigation.
On January 3, 2015, Winters, 48, died in the couple's Henderson, Nevada, home after she had consumed a deadly combination of prescription painkillers and antifreeze.
Initially, the Clark County coroner's office ruled that Winters committed suicide.
Dennis called 911 on the morning of his wife's death and told police that he found her unresponsive in the couple's bed.
He said that Winters had been upset and was taking a combination of Xanax, anti-depressant medication, and alcohol in the hours leading to her death.
Winters' parents, however, rejected the coroner's findings and filed a lawsuit alleging that Dennis killed their daughter.
On January 3, 2015, Winters (left), 48, died in the couple's Henderson, Nevada, home after she had consumed a deadly combination of prescription painkillers and antifreeze
Their attorneys, Anthony Sgro and David Roger, began to present evidence suggesting that Dennis had a strong motive to kill his wife.
They said they conducted an investigation which showed that Dennis did research on the computer about the effects of consuming anti-freeze hours before Winters' death.
They also noted that Dennis stood to benefit financially from his wife's death.
He inherited about $2million following her death - $1million from a life insurance policy and $650,000 from her share of the family's restaurant franchise business in Oklahoma.
Dennis called 911 on the morning of his wife's death and told police that he found her unresponsive in the couple's bed
Dennis also took out $180,000 from his wife's bank account.
In light of the new information, authorities began to shift the focus of their investigation to Dennis after the Review-Journal ran a story last year that cast doubt on the corner's conclusions.
In December 2016, Henderson police reopened the investigation and prosecutors convened a grand jury.
In testimony under oath, Dennis acknowledged seeking treatment for an addiction and buying drugs from a street dealer.
Roger and a former FBI agent found evidence that Dennis was in contact with the dealer in the hours before and after his wife's death.
The dealer in question, Jeffrey Paul Crosby, was convicted of dealing drugs in 2011. He was arrested this past July on a cocaine trafficking charge.
He pleaded not guilty and is free on bail.
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