A forensic analyst on Wednesday dismissed the possibility that a blood sample from an unidentified male found inside a blue Mitsubishi Outlander linked to the 2013 Acadia Drive police shooting could be tied to a fourth person, maintaining that the sample failed to produce enough genetic information to identify its source.

The witness had previously testified that the blood sample failed to produce a readable DNA profile, but that the analysts were able to determine through the sex marker that the genetic material originated from a male.

The court heard that the sample, identified as Exhibit J, had “failed to produce a result in the areas tested with the exception of the sex-determining marker. This marker tells us if the DNA present originated from a male or a female.”