Defense admits Tsarnaev carried out Boston Marathon bombing

U-T San Diego reports:

The question, for all practical purposes, is no longer whether Dzhokhar Tsarnaev took part in the Boston Marathon bombing. It's whether he deserves to die for it.

In a startling opening statement at the nation's biggest terrorism trial in nearly 20 years, Tsarnaev's own lawyer told a jury that the 21-year-old former college student committed the crime.

The basic facts.