While I do agree that what they did is risky, the article does mention that the police had already been notified after previous incidents. Of course if they failed to alert the police after they had the video evidence of the same guy vandalizing the car night after night then I will fully agree complete idiots, otherwise I can sympathize with their desire to go above and beyond to help their sister.
"Complete idiots"might be a slight exaggeration, but hey no offence taken.
iirc they knew we had video, but the video of the car vandalism was never going to be enough to do anything. They had not seen that specific video. In the end it was only a small part of the evidence package.
Thanks for the response. Just to clarify, the 'complete idiots' comment was only applicable in the event you had completely ignored the police while gathering the evidence. Since you seemed to have been in contact with them and realized they were not going to act I honestly applaud you and brother for taking steps to ensure your sister doesn't end up as a 'statistic' as they say.