Mark Zuckerberg speaks at the Facebook F8 developer conference and more: April 18 in photos

 

Facebook holds annual F8 developers conference in San Jose

Facebook Founder and CEO Mark Zuckerberg speaks on stage during the annual Facebook F8 developers conference in San Jose, California, April 18, 2017. (Photo: Stephen Lam/Reuters)

Facebook founder and CEO Mark Zuckerberg speaks during the annual Facebook F8 developer conference in San Jose, Calif.; President Trump speaks during a visit to the headquarters of tool manufacturer Snap-On in Kenosha, Wis.; Pennsylvania state police investigate the scene where Steve Stephens, the suspect in the random killing of a Cleveland retiree posted on Facebook, died in Erie, Pa. These are some of the photos of the day. (AP/EPA/Getty/Reuters)