A quote from the pleadings does not prove anything.  Evidence from the criminal trial might have.  If they were close enough to hear her then they were guilty of far more serious offenses than they were convicted of.  Accident at a distance of a mile or more is more understandable than shooting toward inhabited space only a few hundred yards away which was likely visible to the shooters (given that the bullet was not stopped by intermediate objects).  If the reporter had given the distance, we would be able to conclude whether they heard her, as it is, we cannot.

 We cannot read more into this article than is actually present.  After reading it, I do not know what happened beyond a woman was shot and a guy was convicted of having done it.  Why or how it happened and whether the shooters heard the woman cannot be reliably determined from the information given.  We can only hope RG reporters are more inclusive of information.