Trivia!!! On this day in (recent) History. What was the name?

Question

On this day in recent history The Mercury space capsule that Gus Grissom flew in 1961 was found in the Atlantic Ocean 300 miles southeast of Cape Canaveral, Fla.

What was the name of his capsule?

1st correct answer gets the 10.

Bonus kudos.......What did Grissom say was the cause of the sinking of the capsule?

Answer 1

It was the  "Liberty Bell 7"