John 20:6

6. The result was a conviction, which nothing ever shook, that ‘the Lord had risen indeed’ and been present with them.
All four accounts also agree in some of the details;

6. Both Apostles act characteristically. S. John remains without in awe and meditation: S. Peter with his natural impulsiveness goes in at once. He takes a complete survey (θεωρεῖ), and hence sees the σουδάριον (John 11:44), which S. John in his short look had not observed. How natural is the αὐτοῦ (John 20:7): the writer is absorbed in his subject and feels no need to mention the name. The details (so meagre in Luke 24:12) here tell of the eyewitness: he even remembers that the napkin was folded.