A police officer in Mobile, Alabama was shot and killed as he was attempting to apprehend a murder suspect late on Tuesday, local media reported.Justin Billa was wounded in Toulminville, a neighborhood west of downtown Mobile, when he and other officers approached the home of Robert Hollie, who was suspected in the homicide of his ex-wife earlier in the day, a local NBC affiliate reported.Billa was rushed to the hospital where he died, Mobile Police Chief Lawrence Battiste told a local Fox affiliate.Police returned fire and Hollie was found dead inside the home about three hours later, Fox10 News reported.