Arrest made in decade-old murder case of 5-year-old boy.

Alberto Sierra Jr., the former boyfriend of Jeremiah Oliver's mother, has been charged with murder in the death of the 5-year-old boy whose body was found in a suitcase beside a Massachusetts highway in 2014. Sierra pleaded not guilty at his arraignment and was held without bail. Jeremiah's death led to reforms at the state's child welfare agency, and three employees were fired. Sierra was convicted in 2017 of assaulting Jeremiah's mother and siblings and sentenced to up to seven years in prison. He is also charged with disinterring a body. The investigation into the death is ongoing.