A video that shows a 26-year-old North Little Rock murder suspect with bare feet about 20 minutes after two teenagers were shot to death is a key piece of evidence tying the defendant to the slayings,

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,

Clinton David Brink, 43, and Cristen Amanda Brink, 41, were found dead Saturday at the park in Washington County, police said. They were hiking with their daughters, ages 7 and 9.