Health March 28, 2024 8:25 pm South Florida mother describes ‘invisible fight' with multiple sclerosis NBC6’s Xochitl Hernandez spoke to Martha Casanova, a South Florida mother with multiple sclerosis who is raising awareness of the autoimmune disease. US & World Videos 0:50 Gunman accused in ‘Offer Up' deal gone wrong arrested 0:33 Video shows semi-truck burst into flames near gas station on Krome Avenue 2:14 Man dead after shooting in Wynwood parking lot 3:13 Sisters to compete in Florida's top gymnastics competition 1:01 Man dead after being found shot in Wynwood parking lot