Abou-Arab facing murder, arson charges for 2014 blaze.
Hope is to designate Lake Erie as impaired to boost algae fight.
Accomplice insists friend meant only to scare.
Accomplice in case still unidentified.
Leader of ring among 22 indicted last summer.
Former Springfield High teacher faces up to 20 years in prison.
Suspect alleged to have used BB gun.
Says president has no authority to attach new conditions to federal spending.
Those signing on to a letter sent today include U.S. senators Portman, Brown.
Seeks to compel agency to designate body of water as impaired.