11.   A number of federal appeals courts had ruled that employers could require arbitration of workplace disputes.

12.   Agreements to arbitrate workplace disputes are enforceable even if the employer required the worker to sign the agreement in order to be hired, the court said.

13.   Police said the shooting Wednesday night at Knoll Inc. appeared to have followed a workplace dispute.

14.   The Pennsylvania shooting appeared to have followed a workplace dispute, police said.

15.   The shooting appeared to have followed a workplace dispute, police said.