A University of Alabama student, her friend and a dog were found dead inside the home they were pet-sitting — after the homeowner saw a suspicious person in her yard on her security cameras. Jazmine Alexis Bates, 22, and her pal Jose Felix Alvarez-Duenas, 31, were allegedly killed by De’Kendrick Crawford, 24, in Brookwood, Ala., on Monday, WIAT reported.  Their bodies were found after cops swooped on the home — located east of Tuscaloosa — to carry out a welfare check when Alvarez-Duenas, a restaurant worker, hadn’t answered his phone calls or text messages. Alvarez-Duenas, a single dad to three…