Published: Jul 29, 2011 9:23 PM EDT
Updated: Jul 29, 2011 8:24 PM EDT

SEATTLE (AP) - Trisha Conlon's doesn't want her teenage boys living with a woman who shot and killed her own daughters in their sleep 20 years ago.
    
Come Sunday, though, they will be - thanks to a convoluted custody dispute with her ex-husband, retired Marine Lt. Col. John P. Cushing Jr.
    
Cushing, who lives on Vashon Island south of Seattle, is back together with his first wife, Kristine, who used a handgun in the deaths of their 4- and 8-year-old girls in California's Orange County in 1991.
    
Kristine Cushing was found not guilty by reason of insanity, was in a mental institution for four years, monitored for a decade and granted an unconditional release in 2005.
    
Conlon's petition to change custody arrangements for her sons was denied. She is appealing.

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