Explosion kills husband and kids of missing Utah woman

Explosion kills husband and kids of missing Utah woman
Josh Powell, the husband of Susan Powell, answers questions outside his home in Magna, Utah. Police in Utah say about 30 detectives are looking for leads in the search for Powell, a 28-year-old mother who hasn't been heard from since last weekend. (AP Photo/Deseret News, Laura Seitz)
GRAHAM, Washington - A powerful house explosion killed the
husband of a Utah woman who has been missing for two years, and his two young sons Sunday, moments after the boys arrived for a visit
that was supposed to be supervised by a social worker.

The Child Protective Services worker brought the two boys to
Josh Powell's home, and Powell let his sons inside - but then
blocked the social worker from entering, Graham Fire and Rescue
Chief Gary Franz told The Associated Press.

The social worker called her supervisors to report that she
could smell gas, and moments later the home exploded. What's left
of the house was still smoking Sunday afternoon, and fire crews
were mopping up the scene.

"Everything we know right now, this has become a crime scene,"
Franz said.

It was a horrific end to a long, bizarre tale. Josh Powell was
under investigation in the disappearance of his 28-year-old wife
from their West Valley City, Utah, home in December 2009. He
claimed he had taken the boys on a midnight excursion in freezing
temperatures when she vanished.

The children, 4 and 6, had been living with Susan Powell's
parents since Josh Powell's father Steven was arrested on child
porn and voyeurism charges last fall. On Wednesday, a judge had
denied an attempt by Josh Powell to regain custody, saying she
wouldn't consider returning the two boys to their father until he
underwent a psycho-sexual evaluation.

The case took a bizarre turn last year after Powell's father,
Steve, was arrested for investigation of voyeurism and possessing
child pornography. Josh was living at his father's home at the
time, and a judge gave Susan Powell's parents custody of the boys.

"It's the most horrifying thing you can imagine happening,"
said lawyer Steve Downing, who represented Susan Powell's parents,
Chuck and Judy Cox, in the custody fight. "The Coxes are
absolutely devastated. They were always very fearful of him doing
something like this, and he did it."

Jeffrey Bassett, who represented Josh Powell in the custody
case, said he received a three-word email from his client just
minutes before Powell and his two boys died in a house explosion.
It said, "I'm sorry, goodbye."

The email arrived at 12:05 p.m. Sunday, about 10 minutes before
the explosion, but he didn't see it two hours later, when others
told him Josh and the boys had been killed. He said he knew Josh
was upset after being ordered to undergo a psycho-sexual evaluation
recently, but he didn't see this coming.

Sgt. Mike Powell of the West Valley City Police Department in
Utah, which is handling the investigation into Susan Powell's
disappearance, said it was too soon to say how Josh Powell's death
may impact their probe.

"Quite frankly, this has obviously quickly unfolded up in
Washington and we're obviously just working through the details
ourselves here," Powell said Sunday.

"We are in contact with authorities," Powell added. "It's
obviously an ongoing situation in Washington at this point."