Asa Roberts, 18, who is wanted for an attack on elderly woman who let him inside her home, was spotted on Madison Street in Bedford-Stuyvesant 9:30 p.m., where he fled inside a school under construction, according to law enforcement sources.
Officers canvassed the building but all they found was a bloody shoe that belonged to Robert, a source said.
The teen allegedly raped the woman after she offered to make him a meal at her home on Monday.
The victim is recovering in a local hospital.