interact

Agents are also interviewing people who interacted with the suspect online, Patel said.

Sales staff at H. Lorenzo don’t immediately interact with customers unless they ask.

"It just kind of blows your mind, coming up the street and all the sudden there are helicopters above your house," Ms Steele said, adding she had never spoken or interacted with Mr Robinson.

They hoped they might spot something in the way the couple interacted with each other that night, which would provide answers.

Kester Mann said it would bring about new customer behaviours and "slowly change how people interact with their mobile provider".