Detectives believe they are looking for the abandoned infant's father, who they say frequents the Times Square area.
The boy's body was found in 2022 in a suitcase in a rural area of Indiana.
A 3-year-old in Wisconsin has now been missing for over three weeks.
The reward is growing for a missing toddler in Wisconsin while his mom is facing additional charges.
A Wisconsin woman sent her missing 3-year-old son to a man's home "for disciplinary reasons," prosecutors said.
A Morrisville father was charged with abuse after his 9-year-old son was found dead inside a home in December 2023.
