There were 2 boys who fit the prophecy - Harry Potter; and the other one - Neville Longbottom, as per the Prof. Dumblefore.
Lord Voldemort himself went after Harry Potter.
A little bit later, his main second in command (Lestrange) went after Longbottoms - supposedly, to torture them into revealing the location of disappeared Lord Voldemort.
Is there any support in the books for a possibility that it was just a cover, and instead it was meant to be a (failed) planned ahead hit on Neville the baby, as a backup to killing Harry Potter?