Caviston v. State, 315 Ga. 279

Robert Caviston was indicted for malice murder, felony murder (aggravated assault), and first-degree arson after his 92-year-old, bed‑bound mother was found beaten and the house set on fire; jury convicted on all counts and sentenced to life without parole plus 20 years consecutive for arson.
Multiple witnesses and deputies reported Caviston admitted killing his mother and setting the fire; firefighters and forensic evidence showed two deliberately set fires and severe blunt‑force head injuries inconsistent with an accidental fall.
Forensic and medical testimony: repeated blunt‑force blows (multiple skull fractures), neck injuries, no smoke inhalation, and blood patterns consistent with use of an IV stand or similar blunt instrument.
Caviston testified the death was an accidental consequence of tripping during a fire; on cross‑examination the State elicited that he had authored a 2005 novel titled 'The Philosophy of Murder' (a romance with a serial‑killer subplot).
Caviston moved for a new trial on general grounds (arguing the book evidence was irrelevant and highly prejudicial); the successor trial judge denied the motion. The Supreme Court of Georgia affirmed.

Issue	Caviston's Argument	State's Argument	Held
Whether the trial court erred in denying a new trial on the general grounds because the book evidence prejudiced the verdict	The book evidence was irrelevant, highly prejudicial, and tainted the jury; the judge failed to properly exercise discretion	The successor judge considered the record and properly denied the new‑trial motion; ample independent evidence of guilt existed	Denied — no showing the judge failed to exercise required discretion and the denial was upheld
Whether admitting evidence that Caviston wrote the novel was an abuse of discretion under OCGA evidentiary rules (relevance and Rule 403)	The novel (authored years earlier) was unrelated to intent and so inherently prejudicial that it warranted exclusion	The book was probative on intent/mental state after Caviston asserted an accidental defense; probative value outweighed prejudice; even if error, it was harmless given overwhelming evidence	Admission not reversible; assuming error, it was harmless beyond a reasonable probability that it affected the verdict

Malcolm v. State, 263 Ga. 369 (1993) (operation of law vacates felony‑murder count when merged with malice murder)
Choisnet v. State, 292 Ga. 860 (2013) (trial judge must weigh evidence and credibility when ruling on general‑grounds new‑trial motion)
Butts v. State, 297 Ga. 766 (2015) (presumption that a trial judge who simply denies a new trial exercised required discretion)
Kirby v. State, 304 Ga. 472 (2018) (test for nonconstitutional harmless error)
Flowers v. State, 307 Ga. 618 (2020) (Rule 403 exclusion is extraordinary and committed principally to trial court discretion)
Hyden v. State, 308 Ga. 218 (2020) (successor judge may, after thorough review, exercise significant discretion on general‑grounds motions)
Heard v. State, 309 Ga. 76 (2020) (nonconstitutional evidentiary error is harmless if highly probable it did not contribute to the verdict)
Middlebrooks v. State, 310 Ga. 748 (2021) (standard of review for evidentiary rulings is abuse of discretion)