Young committed to taking the polygraph test about his stepbrother's murder, but backed out at the last minute.

Prosecution wants judge to deny motion, keep case available to public.

Young arrested about 6 p.m. near downtown Louisville.

WDRB's Valerie Chinn contacted the 17-year-old who was acquitted last month of murdering his step-brother.

Terry Zwicker says his son, Trey Zwicker, was failed twice: once in life, and once in death. The victim's father says he doesn't agree with the not guilty verdict, but that he will move on with his life.

Jurors are now deliberating the fate of the teen accused of helping his father murder his 14-year-old stepbrother, Terrence "Trey" Zwicker two years ago.

A jury won't hear from Joshua Young as his murder trial comes to an end.

In the letter, Joshua Young also told family members that he thought the case could get dropped due to lack of evidence.

Joshua Young is the one on trial for the murder of his step brother -- but much of the focus of the trial is on his father, Joshua Gouker.