Derek Rosa says 'I'm sorry' after pleading guilty to killing mother; teen gets 25 years

Derek Rosa Pleads Guilty In Fatal Stabbing Of Mother

Derek Rosa, 15, pleads guilty to murdering mother, gets 25-year sentence

13-Year-Old Derek Rosa Stabbed His Mom 46 Times

Derek Rosa, 15, pleads guilty to fatally stabbing mother 46 times

Jurors in Derek Rosa trial will see video where he confesses to killing mother, judge rules

Grandma does not ‘want to know’ why grandson killed her daughter

Teen Pleads Guilty to His Mother's Murder: Derek Rosa

Derek Rosa, 13, confesses to killing mother in interrogation video played in court

Chilling 911 Call In Court: Derek Rosa Says “I Killed My Mom”

Sleeping Mother Stabbed Case: Derek Rosa Pleads Guilty to 2nd-Degree Murder

Doctor’s Wife Details Alleged ‘Emotional Affair’ She Had Prior To Murder Attempt