A lost videotaped interview contributed to a murder defendant pleading guilty to a lesser charge Wednesday in Hall County Superior Court. Victor Alfonso Martinez, 30, was sentenced by Judge Bonnie Oliver to 12 years in prison after he pleaded guilty to aggravated battery in the March 2013 death of 6-year-old Edwin Ledesma. Martinez had been charged with aggravated battery and cruelty to children in 2006.