Police have identified the baby who was found floating in the East River over the weekend.
Police say 7-month-old Mason Saldana was discovered by tourists after his father, James Currie, allegedly disposed of the body Sunday before fleeing to Thailand.
The 37-year-old is from the Bronx and works for the MTA.
Police say Currie and the child's mother were in a custody battle.
According to police, the father picked up the child from the mother's at around 12:30 p.m. Saturday. Police say surveillance video then shows Currie entering his residence with the child, who they say was alive at that time, about 20 minutes later.
The next day, police say leaving his Co-Op City apartment around 1:30 p.m. carrying what they believe to be the baby. Police say they believe the baby was dead at that point.
The baby was later found in the East River.
Police say the mother called 911 to report the boy missing when she realized that he never made it to day care.
"At some point during the call, and there wasn't any mention of harm to the child, at some point, the mother brings up on her own that such heard about a child in the water and she fears the worst, and she starts crying," said NYPD Chief of Detectives Dermot Shea.
Police say Currie was taken into custody at an airport in Thailand and is expected to be returned within a week.
He will face concealing a human corpse charges.
There is no word yet on an official cause of death for the baby.