A Texas man charged with killing his estranged wife and her twin sister was arrested Monday following a manhunt, authorities said.

Police found the bodies of Karen Bigham, 49, and her twin sister, Kathy Boobar, inside a McKinney home after responding to a domestic violence call.

Karen's husband, Kelley Eugene Bigham, fled about 60 miles east to Rains County, authorities said, before he was arrested a few hours later.

Neighbors said the couple's college-age daughter witnessed the shooting and ran to a nearby house in search of help.


"My heart is broken and full of pain. This is so unbelievable. This was not like my brother at all," Gina Bigham, the suspect's sister, wrote on Facebook.

"Asking for prayers for her twin sister's family as well. We are all in complete shock," she wrote.

Bigham, 50, is charged with capital murder of multiple persons and is being held at Collin County jail, with bond set at $1.5 million, records show.