Melissa had just farewelled her parents to return to Dunedin, while Jared was due to head back to Wellington to look for a flat. It is understood the children have returned to be with their mother.
A friend of the Armstrongs said the couple were keen recreational cyclists and Mr Armstrong regularly cycled with a group of cycling mates on Saturday mornings.
Yesterday staff and customers at Turners & Growers, where Mr Armstrong had worked for 30 years, were grieving for the well-respected northern manager for the transport division.
Turners & Growers general manager of human resources Delys Tansley said he was extremely well known and would be hugely missed by not only colleagues, but suppliers and the transport industry.
"They [staff] are not coping well. They are pretty shocked. We have been talking with his guys in Tauranga who are particularly upset. His co-workers were also personal friends and also close to David's family ... they are trying to get to grips with the loss of a friend so suddenly."
Mr Armstrong had planned to leave Turners & Growers at the end of the month so he could spend more time in Tauranga with his family as he had been commuting to Auckland.