11:40 a.m.

A prosecutor is grilling a prison consultant testifying for the defense in the Boston Marathon bombing trial to try to rebut his description of the strict conditions Dzhokhar Tsarnaev (joh-HAHR' tsahr-NEYE'-ehv) might face behind bars.

Mark Bezy acknowledged Thursday on cross-examination that special communication restrictions can be eased over time. He says inmates in a special unit of the Supermax federal prison in Florence, Colorado, can have five visits each month and can write and receive an unlimited number of letters from people on an approved list.

Bezy had said Wednesday that Tsarnaev's communications would be severely restricted under a procedure known as Special Administrative Measures.

A jury will soon decide whether Tsarnaev will be sent to prison for the rest of his life or face execution.