since you know her mom house, y dont you pay a visit again during night time? something around 8pm and make the thing out loud so let her neighbor know about this?

have you follow up the case with police? i mean you call to police and ask
last week i heard from radio, you have the rights to follow up your case after 40days from the report date, but police oso have their rights to keep the confidential (maybe they're on the right track to crack it etc)

anyway, i wish conman could read this thread, we could track to your parent house, if you still have a lil conscience, go get a proper job... solarwing is a nice guy, if i were him, i will make noisy outside of the house, make all the neighbor know they have such a son