Ingham County Prosecutor Stuart Dunnings III said he has been in “serious discussions” with attorneys for Olivia M. Hudson, 18, of Okemos; Darby D. Dudley, 18, of Mason; Sasha N. Savage, 18, of Okemos; and “we are very, very close” to reaching an agreement with them. The fourth suspect, Nikolai E. Wasielewski, 18, of Rossford, Ohio, is still scheduled for a preliminary exam today in East Lansing’s 54-B District Court.

The students are charged with placing explosives and causing property damage and possession of bombs with unlawful intent. They face up to 20 years in prison and/or a $15,000 fine for each charge.