Updated

A white supremacist charged with killing three people at Jewish sites in suburban Kansas City has asked a judge to postpone his murder trial after prosecutors finish presenting their case because evidence he wants mailed to him hasn't arrived.

Frazier Glenn Miller Jr., who is representing himself, told a Johnson County judge Tuesday the prosecution's case is progressing faster than anticipated and it wouldn't be fair if he doesn't have the evidence to present in his defense. He didn't give details about it.

Miller has asked few questions of prosecution witnesses, which has also moved things along.

Prosecutors say Miller killed 69-year-old William Corporon and Corporon's 14-year-old grandson, Reat Griffin Underwood, outside a Jewish community center before shooting 53-year-old Terri LaManno outside a nearby Jewish retirement home in April 2014.