Co-defendants in a Galva meth lab case pleaded guilty in Henry County Circuit Court on Thursday. John Bengston, 49, and Tammy Hagerty, 33, pleaded guilty to Class X felony aggravated unlawful participation in a meth lab with a child present and four counts of Class 3 felony meth-related child endangerment. The charges allege the crimes occurred on or about June 24.