It has now been one year since Ping Li was found murdered inside a Dallas warehouse. Police said she had been beaten and strangled.

The reward to help find her killer is now up to $20,000 after an anonymous donor added $15,000 to the fund and Crime Stoppers contributed an additional $5,000.

Li, 50, was found dead by her husband at a warehouse in the 11000 block of Harry Hines Boulevard on August 30, 2013. A burglary had been reported at the same address about four hours earlier.

Contact North Texas Crime Stoppers at 877-373-TIPS or visit their website if you have any information that could lead to a suspect. All calls are anonymous.