BOCA RATON (CBSMiami) — A South Florida family is marking the fifth anniversary of the death of a mother and her 7-year-old daughter in a highly publicized murder case that remains unsolved.

Wednesday, the sister of Nancy Bochicchio, JoAnn Bruno and other family members, joined Boca Raton Police to talk about the unsolved murders and made a plea to the public.

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“I just beg of you, if you know anything, please come forward,” cried JoAnn Bruno.

December 12th is a difficult day for JoAnn. It was five years ago on this day that her sister Nancy and Nancy’s 7-year-old daughter Joey were found murdered in their SUV. They had been bound with plastic ties and handcuffs and at least one of them was wearing blacked-out swim goggles.

Detectives discovered the two had been abducted, taken to an ATM and forced to take out $500 before they were shot and killed. Their bodies were found inside Nancy’s SUV in the parking lot of the Town Center at Boca Raton on Dec. 12, 2007. The two were last seen on surveillance cameras leaving the mall.

A 911 call from Nancy’s cellular phone was received by the Palm Beach County Sheriff’s Office, but was disconnected before dispatchers could answer it. The operator tried to call back to Nancy’s phone, but received no response.

“Please, give my sister and Joey some peace,” cried JoAnn. “Let them rest in heaven because they don’t have peace. How can anyone have peace when their daughter was tortured?”

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Police Capt. Matt Duggan has said in the past that making an arrest in a case like this can take time and diligence.

In the years since the murders, police have received more than 2,000 tips and have released a sketch of a suspect.

The killer used duct tape, plastic ties, handcuffs and goggles and police said he left enough evidence behind to tie him to the crime.

“We feel very confident in the evidence that we do have that if we identify a suspect we can tie that suspect to that evidence. It’s a matter of identifying that individual or individuals that can point us in the right direction,” said Police Chief Dan Alexander.

JoAnn Bruno said she can’t rest until the killer is found.

“I promised her that we make sure this animal was caught and I need to do that, I need to bring them peace, I need to go the cemetery where I was going to be today, I need to tell them that this man is caught,” said JoAnn.

There’s a $350,000 reward for information leading to the arrest of the killer or killers.

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If you have any information, call Broward Crime Stoppers at (954) 493-TIPS.