Updated

Authorities searched a landfill south of Phoenix for a third day without finding a missing Glendale girl's remains, but they had reason to be optimistic.

The Arizona Republic says authorities sifting through trash Wednesday found mail and newspapers marked with the same date that investigators believe 5-year-old Jhessye Shockley's body was disposed in a Tempe trash bin.

Police believe the girl's body was disposed days before her mother reported her missing on Oct. 11.

The search at the Butterfield Station Landfill in Mobile began Monday and involves officers from Glendale and other law enforcement agencies.

The search team had to go through an amount of trash that's at least 8 feet deep on previous days to get to the letters and other items they believe correspond to their case.