Ive just found out that a person that lived with us for a few months, when i was 19, is a convicted sex offender and has assualted teenage boys. My 14 year old brother was also in the house at the time. I feel sick. My brother is married with a daughter now and going through a very difficult time. Im not sure if anything did happen. Although looking back at the behaviour of this man, he was certainly trying to groom him. I feel so guilty, that i didnt get this man out of our house. My instincts at the time felt there was something wrong. If i bring this up with my brother now, im not sure he would access any support and hes already struggling mentally in a difficult relationship. I dont know what to do.