Greg Myre

U.S. swimmer Michael Phelps added to his Olympic record, winning a 19th gold medal on Sunday night, while American Katie Ledecky smashed her own world mark in the 400-meter freestyle at the Summer Games.

In his first race in Rio, Phelps swam a powerful second leg in the 4x100-meter freestyle relay. His 47.12 split gave the Americans a clear lead, which they held for a narrow win over France.

Now in his fifth Olympics, Phelps has won 23 medals overall and still has a shot at more.

The shooting in San Bernardino, Calif., was the 355th mass shooting in the U.S. so far this year — or more than one per day on average so far in 2015 — according to groups monitoring such attacks in recent years.

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