Who is Mrs. Harris and what does she tell Elvis about Mrs. Earle?

Mrs. Harris is Mrs. Earle's neighbor. When Elvis goes to Mrs. Earle to ask her why she changes her story about Rossi, Mrs. Harris informs him that she is not home. When Elvis asks where she is, Mrs. Harris does not know either and says she is concerned because Mrs. Earle would never leave town and not tell her. Mrs. Harris reveals that several men had stopped by Mrs. Earle's house and one even tried to get inside. Mrs. Harris describes this man as big with long arms. Based on her description, Elvis is able to determine that if was likely Stan Kerris, head of Green's security team, who went to see Mrs. Earle.