ROCHESTER, Minn. – A Rochester man is facing four child porn charges after being alleged to have said online that he wanted to masturbate in front of children while babysitting. Connor Birkholz, 22, was told to appear in court in May. Police said a woman in Texas alerted them to an obline exchange Birkholz. Police traced the Texas messaging to him. Seized from his phone and laptop were several child porn images, police said. Police acknowledged that they found no searches explicitly for child porn but that Birkholz used search terms like mother-son, mother-daughter and father-daughter. Police said too that Birkholz admitted a preference for girls or boys from 12 to 14.