The police report the female acquaintance, who is currently assisting authorities, was left outside while Lamarre-Condon entered the property for approximately 30 minutes. A new padlock was then used to secure the gate upon his departure.
"The angle grinder was used to sever a padlock from the gate of that particular rural property and subsequently that padlock was replaced with a padlock purchased from the hardware store."
Authorities said Lamarre-Condon later bought weights and revisited the property alone.
"On Tuesday, February 20, we will allege that partial admissions were made by the accused to an acquaintance of having been involved in the death of two individuals," Hudson said.
"I can indicate that on that same day, the Wednesday, the accused, we believe, attended the Bungonia area with an acquaintance who was not involved in anything but has assisted police with their inquiries."
Police have narrowed their search for the bodies of Jesse Baird and his boyfriend Luke Davies to a dam south-west of Sydney.
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