Det. Tom Lange served as lead detective on the case and became one of the trial's most heavily examined witnesses, spending parts of at least seven court days on the stand across direct examination, cross-examination, and redirect. During direct, the prosecution used Lange to methodically walk through both crime scenes and establish the physical evidence timeline, but his testimony also surfaced a critical gap: blood from the Bundy rear gate was not collected on June 13 as planned but only retrieved weeks later on July 3. Johnnie Cochran's cross-examination was relentless and wide-ranging, extracting admissions about blood evidence never collected or tested, hands not bagged for preservation, items booked months late, a glove moved before proper photographing, and inadequate pursuit of alternative theories — including a drug-motive angle centered on Faye Resnick. The prosecution devoted extensive redirect to rehabilitating Lange's credibility and the investigation's integrity, but the cumulative picture of procedural lapses made him a centerpiece of the defense's argument that LAPD's evidence handling was fundamentally unreliable.