Complex sentence: He got shot himself before he could tell Numbuh 2 Nurse Claiborne was infecting the kids, he saved numbuh 2 from being infected himself (even managing to give Nurse Claiborne a permanent pinkeye) but was badly injured in the process.
Split into simpler sentences: He got shot himself before he could tell Numbuh 2 Nurse Claiborne was infecting the kids. He saved Numbuh 2 from being infected himself (even managing to give Nurse Claiborne a permanent pinkeye) but was badly injured in the process.