JACKSONVILLE, Fla. -- A woman has been arrested for allegedly attempting to have her daughter-in-law killed, according to the Jacksonville Sheriff's Office.

Diana Reaves Costarakis, 70, allegedly solicited an undercover detective to murder her daughter-in-law for $5000.

Angela Costarakis whosays she was the intended target could hardly believe what happen.

"The sad thing is I was shocked, but I wasn't surprised," said the daughter-in-law.

"She told me three weeks ago, gave me a big old hug and said I am so glad we are great friends. I guess if I was out of the way she could have her son and her grand daughter," saidCostarakis.

Costarakis, the grandmother, met with an undercover detective on October 9 at a Home Depot located in the 9500 block of Crosshill Boulevard and gave the detective $500 for the first payment as well as a picture of her daughter-in-law, vehicle description and her address.

The undercover detective met with Costarakis again on October 10 and received another payment of $1000. She also informed the detective that her daughter-in-law wore expensive jewelry and when the job was done, he could sell the jewelry.

Costarakis said that the diamonds could be removed from her daughter-in-law's body, sold without a trace and to use the money towards the final payment.

When the undercover detective asked if Costarakis wanted her daughter-in-law dead, she replied, "If you don't, I will."

Hank Reavessays this is so out of character for his sister.

"I gues that is the only postive part of the whole thing, she wasn't able to do, if she did it. I don't know," said Reaves.

Costarakis was arrested and charged with criminal solicitation, and criminal conspiracy. Both of those charges are capital felony crimes (felony first-degree).