Anthony told Metcalf "touch me and find out" during their verbal confrontation, before the physical push and stabbing.
Relevance
Defense
Could be framed as a warning intended to de-escalate/deter rather than provoke, but is also the specific kind of statement §9.31(b)(1) (verbal provocation alone does not justify force) may be raised against — this cuts both ways and should not be presented as favoring only one side.
Prosecution
Prosecutor Bill Wirskye characterized this statement as a threat Anthony made TO Metcalf in closing argument (per nbcnews-verdict-sentencing), framing Anthony as the one who introduced the prospect of violence.
Sources (4)
Students dispute self-defense claim on Day 2 of Karmelo Anthony murder trial
CBS Texas / CBS News · news-reporting
Karmelo Anthony Trial: Teenage witnesses testify after jurors watch arrest, bodycam video
FOX 4 Dallas-Fort Worth · courtroom-live-blog
Karmelo Anthony jury views video showing chaotic aftermath of fatal stabbing
NBC News · news-reporting
NewsNation trial coverage (multiple articles, citing AP and WFAA reporting)
NewsNation, with explicit AP contribution credit; also cites WFAA · news-reporting