"beth" lochtefeld went to new york to be with her boyfriend, tom toolan. by then, the two had been dating for six weeks. but the relationship was fraying. beth was beginning to see a troubling side of this new guy. and she started to give him ultimatums. >> he would start drinking and then he would get really ugly. she would say, you are a good guy but when you are drinking you are an idiot. and you need to decide between alcohol and me. and he would apologize and say, i choose you and i want you. i don't want the alcohol. >> reporter: that week, beth invited her brother to meet her boyfriend. perhaps, she wanted his take on. tom first impression? you see him walk in. >> he had long-ish, blond hair, sort of combed back in a double