LANCASTER, Calif. (AP) - Authorities are still searching for a
third man, described as a person of interest, in the murders of a NASA engineer, a woman and two children whose burned bodies were found in a Quartz Hill house fire last week.

A Los Angeles County sheriff's deputy says Jae Hwan Shim and
Steve Kwon were found Saturday night in Douglas Arizona, near the
California state line, and remain there pending extradition.

A third man, Si Young Yoon, is still being sought.

Police have identified two of the dead as 60-year-old Joseph
Ciganek and 11-year-old Justin Chan Park. A woman and another child
have not yet been identified by the coroner, but the Antelope Valley Press reports friends identify them as the boy's mother, Young Park, and his 13-year-old sister, Jaime.