The years and milestones have passed for the Vaquero family without their beloved brother, son and uncle – 20-year-old Christian Vaquero.

The Newburgh man was fatally shot in the back of the neck while sitting in his car on the corner of Hasbrouck and Mill streets the night before Mother's Day in 2015.

"On his birthday, we at least take cake – we celebrate his birthday at the cemetery," said the victim's sister, Sandra Vaquero.

Vaquero says her brother was picking up his girlfriend when he was gunned down and that since then, the case has seemingly grown cold – without an arrest.

"I feel like my brother was forgotten because it's been seven years already," said Vaquero.

Vaquero says the detective working the investigation has changed three times and is worried whoever murdered her brother will never be found.

News 12 reached out to City of Newburgh police about the status of the case. They responded in a statement: "This case remains open. It is currently assigned to the Homicide Detective. There are various leads that have been generated, none of which I can comment in detail on. Those leads have been followed up with and additional information has been developed.”

"I ask questions to them and they keep saying this is the process, we have to wait," said Vaquero. "It's hard for my mother more because it happened on Mother's Day. For her, she's like, they took my son on Mother's Day."

Vaquero says her brother succumbed to his injuries four days after he was shot and was kept on life support so that he could donate his heart, liver and lungs.

His sister hopes sharing their painful loss will help someone come forward to help bring Vaquero's killer to justice.

"Somebody has to know something."