A Northern California high school teacher remained in custody Monday on suspicion of having sexual relationships with two male students and sharing nude photographs with them, authorities said. Lindsay Himmelspach, 33, was arrested. YUKON, Okla. — An Oklahoma high school teacher was arrested on Wednesday and charged with second-degree rape following an undercover sting, according to KFOR. Hunter Day, 22, was placed in in the Canadian County Jail on. SIBLEY,…