Ark. woman stabs granddaughter, kills self

AP Photo/Family Photo via Log Cabin Democrat

This undated family photo shows Abby Robbins, 7, of Conway Ark. The girl's grandmother, Janice Robbins, who adopted Abby after her son's death in Iraq, stabbed the 7-year-old girl in the chest and then set fire to their home in an apparent murder-suicide, authorities said Monday, Jan. 9, 2012.

AP Photo/Log Cabin Democrat, Ray Nielson

In this undated photo, Janice Robbins poses for a photo in Conway, Ark. Robbins, 63, who adopted her granddaughter after her son's death in Iraq, stabbed the 7-year-old girl in the chest, then set fire to their home in an apparent murder-suicide, authorities said Monday, Jan. 9, 2012.

Tape blocks off the charred remnants of Janice Robbins' home near Conway, Ark., on Monday, Jan. 9, 2012. Robbins, 63, who adopted her granddaughter after her son's death in Iraq, stabbed the 7-year-old girl in the chest and then set the house on fire in a murder-suicide, authorities said.

Abby Robbins, 7, of Conway Ark. The girl's grandmother, Janice Robbins, who adopted Abby after her son's death in Iraq, stabbed the 7-year-old girl in the chest and then set fire to their home in an apparent murder-suicide, authorities said Monday, Jan. 9, 2012.

Soot covers a melted Christmas decoration outside the home of Janice Robbins near Conway, Ark., on Monday, Jan. 9, 2012. Robbins, 63, who adopted her granddaughter after her son's death in Iraq, stabbed the 7-year-old girl in the chest and then set the house on fire in a murder-suicide, authorities said.

Soot covers charred Christmas decorations outside the home of Janice Robbins near Conway, Ark., on Monday, Jan. 9, 2012. Robbins, 63, who adopted her granddaughter after her son's death in Iraq, stabbed the 7-year-old girl in the chest and then set the house on fire in a murder-suicide, authorities said.

The charred remnants of Janice Robbins' home near Conway, Ark.