How Did the Killer Gain Access to Brittany's Apartment?

No witnesses had reported any suspicious activity, nor seeing anyone lurking around to the building or attempting to break in. During a search of Brittany's residence, one officer noticed that the ceiling in the walk-in wardrobe contained an access point to the attic. This would explain why there were no signs of forced entry and why no one was seen breaking into the apartment. A couple of months into the investigation, forensic experts examined the bed sheet taken from Brittany's apartment and discovered that what was initially thought to be a urine stain was in fact semen. Police continued to question those close to Brittany and obtained DNA swabs from individuals with even a loose association to her - but no matches emerged. With no information