There are too many problems with the empty tomb to establish it historically as anything but uncertain.

For one thing, Paul makes no mention of an empty tomb, even in the credal profession he transmits in 1 Cor 15 that states simply Christ "was buried." Nor does Paul make any mention of Mary Magdalene or other witnesses to the empty tomb, instead attributing witness to Christ's "appearance" to "Cephas and the twelve" (itself an intriguing discrepancy from the narrative that Peter was one of the twelve and presumably by the time of the Resurrection Judas was on the run or dead, though maybe Mary Magdalene was the thirteenth and "twelve" retained as a trope).

But let us grant there was an empty tomb. The gospels offer apologetics in response to contemporary skeptics who assumed Jesus's body had been stolen, or its whereabouts confused. Further, at least two if not three of the canonical gospels copy from Mark, so there appears to be ONE extant source for the empty tomb.