mcrowder,
R1 is out due to the interference of his "just retired" teammate under OBR. Any other runners return.
Under FED, the umpire must judge that the catcher "would have" retired the R1 absent the interference in order to rule him out. If the umpire judges the catcher had no chance to retire the stealing runner, the runner is NOT out, but must return to his TOP base.
(Ref.: BRD #266)
JM
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