Heather's father, Dave Springer, was a veteran of the Denver Police
Department. His instincts told him that something had happened to his
daughter. He suspected Dan DeWild was involved but he had nothing to
Growing up, the twins were inseparable. David, on the left, and Dan on
the right, both worked as mechanics for the transit authority. But
people who knew them said there was a difference: Dan was more
controlling than his brother.
Police didn't have much to go on. No one had seen Heather since she had
been at Dan's house, her car was missing and there was no sign of any
foul play. They soon learned that Dan's twin, David, took his Suburban
to be repaired 15 miles away -- an interesting move for a professional
The Springer family -- including sisters Rebecca, center, and Jennifer,
left -- continued to ask for Heather's killer to be brought to justice,
but police didn't have enough evidence to charge anyone. "After a while,
you just think ... Is anything ever gonna happen?" Rebecca said.
In a surprising turn of events, David DeWild, shown here, flipped on his
twin brother. He showed investigators how he says Dan killed Heather in
the garage. David explained they had taken efforts to leave no evidence
behind -- an idea they got from watching crime shows like "CSI."
Facing another trial and the possibility of life in prison, Dan took a
plea deal for second-degree murder and was sentenced to 74 years. The
jurors say that they couldn't have voted to convict Dan for Heather's
murder without his twin brother's testimony.