I really like the possible third option "Amanda was telling the police ******** on her own volition because getting interrogated isn't fun but she may still not have had anything to do with the murder". I don't think it's likely, but it helps noticing that there is in fact a false dichotomy at work here. Either "she indicated Mr. Lumumba to cover her behind" or "the police made her say what they wanted her to say!" are pretty black and white.