Celotex Corp. v. Catrett, Administratrix of the Estate of Catrett , 106 S. Ct. 2548 ( 1986 )
Lani Moore v. District of Columbia , 907 F.2d 165 ( 1990 )
Talley v. District of Columbia , 433 F. Supp. 2d 5 ( 2006 )