TAPPER: Welcome back to THE LEAD. Our Pop Culture Lead today, some tragic news for fans of the new "Star Trek" film series, Anton Yelchin, best known as Chekov to the new generations of "Trekis" was killed yesterday in a freak accident. The LAPD says the rising star stepped out of his car in his own driveway when the vehicle began to slide backwards and it ended up pinning him up against a pillar. Police do not know why Yelchin was behind the car or whether the car was running when he was found. The LAPD confirmed Yelchin's car was a 2015 Jeep Grand Cherokee. We should point out that in April that model was recalled because drivers reported confusion as to whether they knew if the gearshift was or was not in park. Police cannot confirm whether that contributed in any way to Yelchin's death. "Star Trek" director, J.J. Abrams took to Twitter to remember Yelchin saying, "Anton, you are brilliant. You are kind. You are funny as hell and supremely talented and you weren't here nearly long enough." Yelchin was only 27 years old. "Star Trek Beyond," the latest installment in the series will come out next month. Yelchin will be in the film. In our Health Lead today, for the first time, the Food and Drug Administration is allowing a clinical trial for an experimental vaccine for the Zika virus. The vaccine will be manufactured by two pharmaceutical companies, one in Pennsylvania, the other in Seoul, South Korea. The company say they are likely to begin their first tests on humans within the next few weeks. As part of the standard procedure for human drug trials, researchers will first test their vaccine on people who are healthy and without the Zika virus. Then if it is determined to be safe, will conduct further trials with people who actually have the virus. That's it for THE LEAD. I am Jake Tapper. I turn you over to Wolf Blitzer, who is in "THE SITUATION ROOM." Thanks for watching.
"Star Trek's" Anton Yelchin Killed By Own Car; Experimental Zika Vaccine Will Be Tested On Humans.