On Friday, San Diego police were searching for a woman whom they alledged murdered her wife of just six months and then skipped town.

According to the Daily Mail, police have issued an arrest warrant for Tiffany Nowden-Vale, 39, whose wife Russina Vale, 38, was found dead from blunt-force trauma to the upper torso inside the couple’s home on June 5. The couple’s two small dogs have also reportedly gone missing. 

The couple had reportedly been fighting before the woman was killed, according to neighbors. Russina Vale’s body was discovered around 6 p.m. on June 5 by San Diego police performing a “welfare check.”

Investigators believe Nowden-Vale may have fled to Colorado or Mexico.

Before moving to California, Vale apparently worked for a non-profit organization helping special needs children in Colorado.

“She had the biggest heart I’ve ever known,” the slain woman’s sister, Sarah Alexander, told ABC 7 Denver. “We need to find [Nowden-Vale], we need to bring peace. It’s not fair, it’s not fair. When kind-hearted, amazing humans are taken away the way she was, there has to be justice.” 

Alexander added that the last time she saw her sister, she was in the process of filing for divorce from Nowden-Vale.

A $1,000 reward has been offered for anyone with information on the whereabouts of Tiffany Nowden-Vale. Call San Diego CrimeStoppers at (888)-580-8477 with any tips.