During a recent hearing at the North Gauteng High Court in Pretoria, advocate Zandile Mshololo, representing Fisokuhle Ntuli, accused number five in the Senzo Meyiwa murder trial, challenged the credibility of Colonel Lambertus Steyn’s testimony. Steyn, an investigation officer and data analyst at the South African Police Services’ Cold Case Unit, had testified about a cellphone link between Ntuli and Meyiwa’s girlfriend, Kelly Khumalo.