 Ayers had previously been a roommate of Terry Robbins, a fellow militant who was killed in 1970 along with Ayers' girlfriend Oughton and one other member in the Greenwich Village townhouse explosion, while constructing anti-personnel bombs (nail bombs) intended for a non-commissioned officer dance at Fort Dix, New Jersey.In June 1969, the Weathermen took control of the SDS at its national convention, where Ayers was elected Education Secretary.Later in 1969, Ayers participated in planting a bomb at a statue dedicated to police casualties in the 1886 Haymarket affair confrontation between labor supporters and the Chicago police.