orio was like a brother to jim. he keeps a recording of orio's last transmission. orio's crew had wasted no time climbing to the 78th floor of the south tower. >> in about two minutes later -- down came the twin towers. one after the other. new york's iconic buildings have vanished from the skyline. >> these guys were going about their business professionally, selflessly, and consistently, the way he pressed on, that keeps us pressing on. in his memory. >> among the victims was orio. and about 300 other firefighters. mount mountains of debris hampered the body recovery. orio's remains were never discovered. the debris was moved to landfill where it was sifted for bodies and personal effects. during the decade since then, about 1,600 bodies have been identified. but up to 9,000 human remnants are still unidentified. since then, jim has been in touch with others also waiting for the return of relatives remains. on this day, sally reaganhart called on jim. she lost her son, who was also a firefighters. >> we're both in the same situation that neither of us have ever h