Final answer:
There is no specific trial testimony mentioned that would result in a further investigation of someone other than Martha Carrier.
Step-by-step explanation:
The question asks about whose trial testimony is likely to result in a further investigation of someone other than Martha Carrier. Based on the given information, there are several references to different trials and investigations. However, none of them specifically mention Martha Carrier or provide conclusive evidence of further investigations against someone else. Therefore, there is no specific testimony identified that is likely to result in a further investigation of someone other than Martha Carrier.