We lost our beloved dog Chaco Sunday at about 6pm, at Berkshire Drive and Berkshire avenue in El Sereno behind

We lost our beloved dog Chaco today Sunday 10/11 at about 6pm, at Berkshire Drive and Berkshire avenue in El Sereno behind Huntington Drive. Has anyone seen him? He's 10 years old Chihuahua/ Min Pin Bown with light brown coloring. Please help, he has a heart condition.(