A guilty plea from aman accused of breaking into his ex-wife’s home, chasing her with a hammer and abducting their son has pleaded guilty in Saratoga County Court. Authorities say in May 2020, Nivaldo Oliveira broke into his ex-wife’s apartment in Halfmoon to abduct their 6-year-old child. The child and Oliveira were eventually found in Albany. The child was not hurt.