Sherman Fuller, 45, was formally charged Friday with possession of an explosive device and failure to register as a sex offender.
The bombs were described as pipe bombs made with PVC pipe stuffed with fireworks and model rocket engines, the Tribune reported.
Investigators found more PVC pipe, fireworks, model rockets and other items in Fuller’s home when they searched it.
It’s still not clear why Fuller made the bombs or why he was wearing them.
Read more about the ongoing investigation in the story from the South Bend Tribune.