A teacher arrested in the murder of a married couple found stabbed to death on a trail in an Arkansas park was held without bond after a brief court appearance on Friday.

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,

James Andrew McGann, 28, was arrested and charged with two counts of capital murder in the deaths of Clinton and Cristen Brink, authorities said.