Jeffersonville Police Department Sgt. Isaac Parker said Wednesday that officers made 22 arrests in the previous 48 hours.
The attempted abductions occurred during IU's Little 500 weekend.
The Wayne Township Schools say the boy wandered away from a playground during recess.
Authorities are telling people in Pennsylvania, New York, Indiana and Michigan to be on the lookout.
Authorities say around 13 people have been arrested based on pending warrants against them unrelated to the slayings.
Police say one of the two teenage girls killed last week in northern Indiana recorded the voice of a suspect in their deaths.
Officers responded to the incident Tuesday afternoon where attempts were made to revive Anthony Andrews.
The man's cause of death won't be known until toxicology reports return.
Police are seeking tips from the public in the investigation.
Bunker Hill has been without a police force since December when the former marshal and his four deputies resigned.