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Thomas Gilbert Killing: Son Who Murdered Wealthy Father For Lowering His Allowance Sentenced To 30 Years To Life

NEW YORK (CBSNewYork) - A 34-year-old man found guilty of murdering his wealthy father has been sentenced to 30 years to life in prison.

Prosecutors claimed Thomas Gilbert Jr. was angry because his millionaire, hedge fund manager father had reduced his $1,000-a-week allowance.

Thomas Gilbert Jr.
Thomas Gilbert Jr. is accused in the death of his father, hedge fund manager Thomas Gilbert Sr. (Credit: CBS2)

The 70-year-old hedge fund manager was shot to death inside his East Side apartment in January of 2015.

Thomas Gilbert, Sr.
Thomas Gilbert, Sr. (credit: Image via CBS2)

Jurors rejected an insanity defense after Gilbert's lawyer argued he was unfit to stand trial.

Gilbert was shot in the head inside his East Side apartment. His wife Shelley found his body and called 911.

"Hello ma'am, you said your husband was shot?" a 911 dispatcher was heard saying on a recording of the 911 call.

"Yes," Shelley Gilbert replied.

"How long ago?"

"Probably 10, 15 minutes ago," she replied.

"Ten minutes ago he was shot?" the dispatcher asked.

"Maybe 15," she replied.

"By whom?"

"My son, who is nuts. But I didn't know he was this nuts," she said.

Gilbert spent two days on the stand, and said her son has been diagnosed with a long list of mental illnesses, including depression and paranoia.

His lawyers argued he was unfit to stand trial because of mental illness, but the court disagreed.

Gilbert, Jr. graduated from Princeton University in economics, but was unemployed. His wealthy parents supported him financially. Prosecutors believe Gilbert, Jr. killed his father $1,000 a week allowance.

His mother testified they were lowering the amount in an effort to force their son to get psychiatric help. She says the trial has been painful and exhausting.

"No family should ever have to go through this, ever," Shelley Gilbert said.

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