UJI 14-5011. Production of all witnesses or all available evidence not required.

Neither side is required to call as witnesses all persons who may have been present at any of the events disclosed by the evidence or who may appear to have some knowledge of these events, or to produce all objects or documents mentioned or suggested by the evidence. You may not speculate on whether the testimony or evidence not produced would have been favorable or unfavorable to the party who apparently failed to present the witness or evidence.