Paint evidence helped solve the case of the Green River Killer because investigators had:
A.
high-tech investigative tools at their disposal.
B.
a known suspect to gather evidence from.
C.
a definitive match in the paint data query.
D.
additional corroboration from other trace evidence.
C. a definitive match in the paint data query.
What should be considered when using a compound microscope to examine two samples side by side?
A.
that the settings for both microscopes be the same
B.
that the samples be properly transported to the lab
C.
that samples contain a similar chemical composition
D.
that other types of microscopes have already been used
A. that the settings for both microscopes be the same.
The answer is C. a definitive match in the paint data query.
To explain how paint evidence helped solve the case of the Green River Killer, investigators utilized a technique called paint data query. This involved collecting paint samples from various crime scenes linked to the killer and comparing them to potential suspects' vehicles. This method relies on the fact that each batch of paint used in the manufacturing process has a distinct chemical composition, which allows investigators to determine whether the paint found at a crime scene matches a specific vehicle.
In this particular case, investigators were able to find a definitive match between the paint samples taken from the crime scenes and Gary Ridgway's truck. This provided crucial evidence that linked Ridgway to the murders. The paint data query was a significant breakthrough, as it greatly supported the investigation and allowed the investigators to establish a strong connection between Ridgway and the crime scenes.
Therefore, option C, a definitive match in the paint data query, was the key factor that helped solve the case of the Green River Killer.