Crime Alert, I'm Nancy Grace, breaking crime news now, Antonio A.J. Armstrong Jr. calls

time on one to report a masked intruder shot his parents, former NFL linebacker Antonio

Armstrong Sr., and his wife, Dawn Armstrong.

Cups can't find any evidence of forced entry and discover blood spatter on Armstrong

Jr. shirt, the one he was wearing the night of the murders.

Armstrong Jr. arrested, tried twice, with both juries, unable to reach a verdict.

Nancy, each trial focused on different evidence, including a practice shot fired in Armstrong

Jr.'s bedroom, Internet searches about setting a building on fire and rigging a car

to explode, and security system timestamps showing movement around the home.

Cups discovered the blood spatter on the back of a nametag put on Armstrong Jr. shirt

the night at the murders, and while initial tests came back as inconclusive, a second

round came back as a DNA match to Antonio Armstrong Sr., the father died at the hospital

from a gunshot wound to the head, while Dawn Armstrong was pronounced dead on the scene.

Armstrong Jr.'s third trial results in a conviction on Capitone murder and life behind bars.

Justin Carter applies for a job as an officer with the Monticello Arkansas Police Department

under a false identity.

When cops run and expected background check, they discover it.

There's not even the same ethnicity as the person who applied.

Cups do more digging and discover there's a national warrant for Carter's arrest.

They ask him to come in for a physical fitness test and when he completes it, he's cuffed

on parole violation.

Guess he didn't make it through cadet school.

...