EXCLUSIVE: Hitman-For-Hire Sentenced For Murder Of Yonkers Mom, 3 Others

YONKERS, N.Y. (CBSNewYork) -- It is the sordid tale of a confessed killer's deadly secret and capture.

After 22 years, a hitman-for-hire was sentenced Friday for the murder of a Yonkers mother just one room away from her small children. CBS 2's Lou Young spoke exclusively with the woman's grieving family about the sentencing.

Freddie "Turbo" Gonzalez, partial to Israeli-made machine guns and military hollow-point bullets, killed for profit in the 1980s and '90s and thought he'd gotten away clean. He was arrested and deported on mere weapons charges.

That was before Yonkers Det. John Geiss managed to tie Gonzalez to four 1990 New York murders, including the machine gun death of 22-year-old Marisol Carmelo.  She was shot repeatedly as she lay next to her husband in a Scarsdale Avenue home in August of 1990. They died with their two small children in the next room.

"I call him a monster. He's a monster," said Teresa Perez, the victim's sister.

There was a cold case tip recently and then the realization that Gonzalez had sneaked back into the U.S. from the Dominican Republic. Authorities nabbed him and even managed to get a confession.

"We told him that we knew everything and there were two kids in the house and I said 'I don't think you're a bad guy because you didn't kill the kids' and he goes 'You're right, I didn't kill the kids.' He was proud that he didn't kill the kids. He let the kids live," Geiss said.

Lieutenant Tim Hodges was one of the first cops to arrive at a scene and said it still haunts him.

"You could smell the gunpowder. You could smell the carbon and you could see the cloud in the ceiling," Hodges said.

The dying mother called 911 then her sister, Millie Santiago.

"All she kept saying 'Come pick up the kids. Those were basically her last words,'" Santiago said.

"No one can imagine how hard its been and it's still going to be -- 21 years, 9 months and 10 days. I have them counted,"  Perez said.

Freddie "Turbo" Gonzalez will not be burdened with any countdown to release. A federal judge gave him four life sentences in federal prison, where there is no parole.

Both of Carmelo's surviving sisters made victim impact statements Friday before the federal judge passed sentence on Gonzalez.  The woman's grown children told their aunts they were too upset to attend the proceeding.

Gonzalez was also sentenced for the murders of another man in Yonkers and a victim in Queens.

Sources told CBS 2 they believe Gonzalez is responsible for many more deaths, possibly as many as 15 unsolved murders.

Please offer your thoughts in the comments section below ...