Friends of late rapper Coolio have said they suspect the musical artist's battle with asthma was a factor in his death at 59 last week.Insiders close to the Gangsta's Paradise performer told TMZ that the rapper was in good spirits prior to his passing last week, but had difficulty with asthma over the years, and would keep inhalers on him to regulate his breathing.Relatives of the C U When U Get There performer told medical officials that he had a history of asthma, the outlet reported. The latest: Friends of late rapper Coolio have said they suspect the musical artist's battle with asthma was a factor in his death at 59 last week.