From Butler's Lives if the Saints, a brief synopsis of why I would not cut it as a martyr:
The legend of Sebastian’s death is frightening. Romans, the story goes, tied him naked to a tree and used him as a target for archery practice. Many Renaissance paintings portray this incident. After he was left to die, a widow came to bury him, but she was astonished to discover that somehow breath was still in him. She took him home and tended to his wounds. After his recovery, she pleaded with him to escape the risks of living as a Christian in Rome. Instead, he went to Diocletian and demanded that he stop persecuting Christians. Shocked to discover that the young man had survived the target practice, Diocletian ordered the immediate execution of Sebastian. He was then clubbed to death.
It is also the Feast of St. Fabian. Not to be confused with Fabian, the "Turn Me Loose" guy.