Someone asked about "trash" day. Trash day is Monday and most residents put there trash out on Sunday night - the night after the backpack was found. As far as I know there was no request not to put trash out or to do anything any different than usual that evening.
Also, as to a possible explanation as to the location of the backpack. If you were driving from the area of Jessica's home to the mountains North and West of Boulder and wanted to get to Highway 36 you would drive right past the neighborhood that the backpack was found in. In fact, the street that it was found on is the last right turn as you head North that is not a commercial area or a main street (i.e somewhat isolated). So, if you wanted to dump the backpack before getting to the highway this is the street you would turn on - throw it out the window - turn around and head to the highway. Obviously if it didn't show up until late Saturday night it doesn't explain the 24+ hour gap. Also, it was extremely cold and wet on Saturday during the day so I'm sure LE knows more about the condition of the backpack as this may relate to timing but I just want to make the point that the location might not be as random as some might think.
Also, as to a possible explanation as to the location of the backpack. If you were driving from the area of Jessica's home to the mountains North and West of Boulder and wanted to get to Highway 36 you would drive right past the neighborhood that the backpack was found in. In fact, the street that it was found on is the last right turn as you head North that is not a commercial area or a main street (i.e somewhat isolated). So, if you wanted to dump the backpack before getting to the highway this is the street you would turn on - throw it out the window - turn around and head to the highway. Obviously if it didn't show up until late Saturday night it doesn't explain the 24+ hour gap. Also, it was extremely cold and wet on Saturday during the day so I'm sure LE knows more about the condition of the backpack as this may relate to timing but I just want to make the point that the location might not be as random as some might think.