Overview
- The U.S. Marshals Service obtained a federal arrest warrant on Aug. 10 and is leading an international manhunt for 27-year-old Matthew Christopher Flores Semyonov.
- Avondale police remain the lead local agency after a family-requested welfare check earlier in August found large amounts of blood and signs of an attempted cleanup at the home.
- Investigators excavated the backyard with a mini excavator and recovered two decomposing bodies that have not yet been publicly identified while autopsy and identification work is pending.
- Authorities say Flores Semyonov is believed to have left the United States, should be considered dangerous, and the public is urged not to approach him but to call the U.S. Marshals tip line or submit anonymous tips online.
- The family says it is cooperating and requests privacy as investigators process the scene, seize vehicles and items, review doorbell and traffic camera footage, and pursue cross-border partnerships that could lead to extradition.