格威内特县毕业典礼上一名女子遭枪杀；嫌疑人已被拘留，犯罪动机正在调查中。 Woman fatally shot at Gwinnett County graduation party; suspect detained, motive under investigation.

周六晚上，一名女子在格威内特县的毕业典礼上被枪杀。 A woman was fatally shot at a Gwinnett County graduation party on Saturday night. 该嫌疑人与受害人相识，在现场被目击者控制，随后被拘留。 The suspect, who was acquainted with the victim, was detained on the scene by witnesses and later taken into custody. 当局尚未公布受害者的姓名，并且仍在调查犯罪动机。 Authorities have not yet released the victim's name and are still investigating the motive behind the crime. 格威内特县警察局鼓励任何掌握该事件相关信息的人员挺身而出。 The Gwinnett County Police Department is encouraging anyone with information regarding the incident to come forward.