'I just killed my wife,' man tells cops

A Pennsylvania man was arrested in what Chester County Prosecutor Tom Hogan calls a "cold-blooded, pre-planned killing" of the man's estranged wife, the mother of his four kids, outside a convenience store.

James Hvizda is accused of killing his wife Kimberly Hvizda -- who had a restraining order against him -- around 11 p.m. Sunday in the parking lot of the Wawa in Upper Uwchlan Township, according to authorities.

"This was a cold-blooded, pre-planned killing," said Hogan. "The defendant executed his wife, the mother of his four children, with casual efficiency. Those four children are now left without a mother and with a father charged with murder."