one of the closest friends of georgina bartter , who died after consuming an ecstasy pill at a music festival last year .
police alleged ms hannibal , of cammeray , supplied a number of ` purple speaker ' pills between 2 pm and 3:30 pm on november 7 , the day before the harbourlife dance festival .
rebecca hannibal -lrb- centre -rrb- has pleaded guilty to supplying the teenager with the fatal pills that led to her death .
rebecca hannibal , 19 , appeared in front of downing centre local court on wednesday .