State of New Mexico v. William Mark Mann

Summary

The Supreme Court of New Mexico considered whether juror misconduct during deliberations warranted a new trial for William Mark Mann's convictions arising from the death of a child. A juror performed probability calculations based on trial testimony regarding the defendant's accident theory, and the defendant argued that this introduced extraneous information to the jury. The court affirmed the convictions, holding that the juror's use of professional judgment and trial evidence did not establish improper extraneous information or an abuse of discretion in denying a new trial.

Holdings

1. A juror may properly rely on education, professional experience, common sense, and background knowledge when evaluating evidence properly admitted at trial; such deliberation does not itself constitute the introduction of extraneous prejudicial information.
2. Mann failed to make the required affirmative showing that extraneous information was actually brought to the jury; therefore, the trial court properly denied the motion for a new trial.
3. The denial of a motion for a new trial is reviewed for abuse of discretion and will not be overturned unless the ruling is arbitrary, capricious, or beyond reason.
4. Mann waived any right to be present during the in camera juror interviews by failing to invoke that right after the trial court announced the interviews, and the interviews did not establish a confrontation violation.

Questions Presented

1. Whether a juror's probability calculations and discussion based on properly admitted trial evidence and the juror's education and professional experience constituted extraneous prejudicial information or juror misconduct requiring a new trial.
2. Whether the trial court abused its discretion by denying Mann's motion for a new trial without conducting a further evidentiary inquiry.
3. Whether the trial court's in camera interviews of jurors violated Mann's right of confrontation or right to be present.

Disposition

affirmed