Issue – if the inmates first amendment rights would be violated if a Chaplain ga

Issue – if the inmates first amendment rights would be violated if a Chaplain gave a prayer during a graduation ceremony that was non-denominational?  And if the inmates first amendment rights would be violate if the Chaplain gave a prayer during a graduation ceremony that was denominational?
IRAC formatIssue Relative casesApplication of cases to IssueConclusion
I need the following 4 United States cases – preferred PENNSYLVANIA cases2-3 statutes5 pages 
Question – on whether an inmates 1st amendments rights would be violated if a Chaplain did a non denominational prayer at a graduation ceremony.