Officials said the husband was the first to be attacked while the wife guided their two children to safety before returning in an attempt to help her husband.

Prosecutors in Arkansas say Andrew James McGann left a hiking trail at a state park a bloody mess after stabbing a couple to death ... and folks saw him leaving the scene with blood on his face. In new legal docs,

Police late Wednesday announced that Andrew James McGann, 28, of Springdale had been arrested on two counts of capital murder in the killings. He was taken into custody at 4:57 p.m. at a business in Springdale, the Arkansas State Police said in a news release.