Report 61150: Security guard on patrol in Canaan area (Summer 2010) describes loud screams and 18-inch tracks

i was a security guard at drug reability place in caannan ct. my duty there was to patrol the area every half hour. at 3 am in the morning i went out the back door to do my walk around and as i stepped out onto a deck the loudest scream i had every herd made all my hair stand up.it sounded female and was only 100 ft away .i no this becaus right behind the building is a mountain that has a trail that runs parallel with the mountain.i wated till the sun came up and walked to ware the trail was and seen foot prints that i measured to be 18inches long and 5 inches wide..iwent home and check out the scream i herd on youtube and emiedatly i got a hit.it was the same sound i hurd and my hair stood up again.i no this isnt like a sighting but you had to be there to hear it. thanks dean