i was hoping someone would know about this 
My friend called me as she watched an ambulance pull away from a beat up bike at center and highland between 5 and 6 on friday. according to her it was an adult on the bike, but that some witnesses later were talking about it and said something about a child being on the bike as well (like in a baby carrier seat??)
she wasnt sure about the baby part, but definitely saw the cyclsit loaded into an ambulance and leaving (she leapt off the bus to find out if it was someone we knew but the ambulance was already making its way away)
she also said there was a crowd who must have seen it at the center-highland bus stop that heads towards shadyside.. in case the person in the accident needs witnesses for anything. but thats all we know.