Seven-month-old Baby Elijah died Saturday night after his father fell from a pedestrian bridge at the Logan River Parklands with Baby Elijah in his arms.

Here are the summarized points of the story, and the reasons why David Fisher is facing murder allegations.

- David Fisher, 38, left the family home at Eagleby with Baby Elijah, who was in his baby stroller.

- Reaching the pedestrian bridge at the Logan River Parklands, Mr Fisher took Baby Elijah in his arms and fell 15 metres into the river at around 6:45pm.

- Mr Fisher surfaced back, but Baby Elijah got lost in the waters.

- "Elijah's drowned. Elijah's gone,'' Mr Fisher allegedly told his wife, Lauren.

- Lauren immediately made calls to rescue services and relatives. Mr Fisher was reportedly heard screaming in the background to calls made to family members.

- Mr Fisher, 38, was interviewed by Logan CIB detectives before he was charged with murder at around midnight of the same day.

- Rescuers and authorities on Sunday morning found Baby Elijah's body not far from the bridge where he and his father fell.

- In a back story, The Courier-Mail reported Lauren had tweeted two months after Baby Elijah was born: "So thankful for David who manages the kids 100% except for feeding the baby."

- Lauren, who is apparently active on Twitter, had also tweeted two days before Baby Elijah was drowned to death: "Children will always follow in the footsteps you thought you covered up."

- Lauren and David had five children: four daughters and Baby Elijah.

- Mr Fisher has appeared in the Beenleigh Magistrates Court Monday morning. He has been remanded in custody until July 16.