A woman murdered outside her home early on Wednesday was identified by police this afternoon as Garrina Cann, 31.Ms Cann was with guests at a party in the house, near North Shore, when she was fatally shot shortly before 12.20am.Detective Superintendent Nicholas Pedro, the head of the crime division, appealed for calm in the community, saying police had seen “talk of retaliation” on social media.”The response to this violence can’t be more violence,” he said.Mr Pedro said poli