Because in those times, African Americans were rarely believed in court and he was afraid that even if he told to truth, he would be found guilty.
Answer:
Kamen gives the opinion that his equipment was complicated. He supports this opinion with facts; for example, he says that people "had trouble wiring it" and that he "spent several days" fixing it.
Explanation:
This is just the example that ed uses, so I wouldn't suggest copying and pasting, but this should help. :)
She wanted to scare John and get his attention