36岁的Helena Wright和她23个月大的女儿在南澳Port Macdonnell附近的Cape Northumberland悬崖跌落后身亡，警方将此认定为谋杀-自杀案件[1]。两人于周一从海洋中被救出后不治身亡[1]。Wright的两个月大儿子至今下落不明，搜救队从周一至周三进行了持续搜救但未发现任何踪迹[1]。警方已于周三下午正式结束搜救行动[1]。
警察委员Grant Stevens表示，当局将继续在未来数日内搜索海岸线，"希望能够找到这个小婴儿，但我们对此并不抱很大希望"[1]。警方表示，在如此恶劣的条件下，婴儿无法在野外存活近三天[1]。
事件发生前，Wright曾在死亡前一天前往当地警察局[1]。警方随后在公众发现其车辆停在Cape Northumberland悬崖附近数小时后进行了一次福利检查[1]。警方表示将审查Wright与警察的互动情况，并将此作为呈报法医的报告内容[1]。
A 36-year-old woman and her 23-month-old daughter died after falling from cliffs near Cape Northumberland in the coastal town of Port Macdonnell, South Australia, in what police have classified as a murder-suicide [1]. Helena Wright's two-month-old son remains missing following the incident on Monday [1]. Search and rescue operations conducted from Monday through Wednesday failed to locate the infant, and police formally concluded their search efforts on Wednesday afternoon, citing the impossibility of survival under harsh conditions for nearly three days [1].
Police Commissioner Grant Stevens stated that authorities "will continue searching the shoreline in the coming days in the hope of being able to recover the little infant but we're not holding a lot of hope in that regard" [1]. Wright had visited the local police station the day before her death, and officers had conducted a welfare check after her vehicle was discovered parked near the cliff edge at Cape Northumberland hours before the public discovery [1]. Police have indicated they will review Wright's interactions with officers as part of their report to the coroner [1].