GOSHEN — A grand jury indicted a Middletown man on Tuesday on charges he threw acid on the mother of his child.The indictment charges Guadalupe Castillo-Robles, 50, with second-degree assault, a felony, and misdemeanor counts of weapon possession and menacing.The indictment charges that on Jan. 1 Castillo-Robles threw acid at the woman’s face, injuring her, and that on Jan.