nasa scientists discovered a micro-bacteria in a california lake that had arsenic instead of phosphorous. what that does, tony, is raises the possibility that there could be atmospheres on other planets that don't have phosphorous. and that leads to the possibility that there could be life on other planets. so that's what this is all about. that's what this press conference is going to be all about in a couple hours, tony. i'm sorry if it's not what you wanted to here. don't blame the messenger. >> i won't do that. >> that's the deal. >> i thought we were looking for "et." i thought we were looking for the things chase people around in those alien movies. we're looking for microbes. i'm disappointed. not in you. good to see you, sir. let's take a look at top stories right now. police say a person of interest in the shooting death of celebrity publicist ronni chasen shot and killed himself when detectives tried to question him.