Original sentence: A distant cousin of Earp's has speculated it may be that the incident both Siringo and Beeson remembered happened at another time, but no account of another incident has yet come to light
Edited sentence: One Earp worshiper [and far distant cousin] has speculated it may be that the incident both Siringo and Beeson remembered happened at another time, but no account of another incident has yet come to light.Therefore, speculation that there was another incident is just that