Police revealed Little buckled Koda, four, and nine-month-old Hunter into the back of his Ford station wagon before driving to the fast food restaurant.
Once there, he went through the drive-through, ordering a coffee and most likely a small treat for the boys, reports news.com.au.
He then drove to a Boston Bay wharf and shot both children and then himself as their car plunged into the water.
“I think there was a total commitment to what he was about to do but a kind of protective mechanism human beings have where they go into trying to normalise the situation,” clinical psychologist Dr Janet Hall told news.com.au.
“It would have been like a last supper or last treat for them [the kids]. It’s a way of pretending this terrible tragedy isn’t going on.”
Little had been battling mental health problems for several years.
Mr Little’s wife, Melissa, released a statement to the media following the tragic events, describing Mr Little as a “father who loved his two children very much”.
Ms Little’s full statement
Words cannot express the pain I have felt since Monday.
Damien was my childhood sweetheart who became my loving husband. He was also a father who loved his two children very much.
Damien valued and appreciated our close-knit family, he put us first, we were his whole world. He spent every hour providing quality time and teaching the boys how to live and grow.
Damien I loved you so much you have left a huge hole in my heart, our memories I will cherish forever. You will not be forgotten.
My wish is for Damien to be remembered as a well-respected and valued member of our family and our community.
My two precious boys have left this world way too soon and my heart is broken. I will miss them and think about them each and every day. Their futures were full of endless possibilities.
Koda had the biggest heart, so loving and caring. He always loved a hug, had so much enthusiasm and was a willing helper.
Hunter was such a happy, content and smiling baby. His laughter was infectious and his cheeky little personality was just beginning to emerge.
Considering what I am still yet to face in the grieving process, I ask that you please respect my privacy as I come to terms with this unexpected and tragic event.
Readers seeking support and information about suicide prevention can contact Lifeline on 13 11 14.
