LAS VEGAS, April 23 (UPI) -- The man found to have the toxic substance ricin in his possession has been indicted by a grand jury in Las Vegas on charges related to the toxin and firearms.

LAS VEGAS, April 16 (UPI) -- Federal charges were filed Wednesday against the man found to have had the toxin ricin in his Las Vegas hotel room in February.

LAS VEGAS, March 5 (UPI) -- Las Vegas police have learned that the suspect in their ongoing ricin investigation also lived at another hotel in the city for about a year.

LAS VEGAS, March 4 (UPI) -- A hazmat team was sent to the Excalibur Hotel in Las Vegas after a guest said there was white powder on his bed Tuesday morning.

WASHINGTON, March 4 (UPI) -- Ricin has been a byword for terrorism in the mass media since Colin Powell used it to link Iraq-based terrorists to groups plotting attacks in Europe as part of the U.S. case for invasion in 2003. But the ricin in that incident turned out to be no more real than Saddam Hussein's weapons of mass destruction, and experts say that the toxin is so difficult to purify it is unlikely to ever be used successfully in a terror attack.

RIVERTON, Utah, March 3 (UPI) -- Authorities in hazmat suits have finished their search of a Utah home looking for vials of the deadly plant poison ricin, a newspaper said.

RIVERTON, Utah, March 2 (UPI) -- Authorities have isolated a house in Utah as they investigate how vials of the deadly poison ricin came to be in a Las Vegas motel room.

LAS VEGAS, March 1 (UPI) -- Police do not suspect terroristic motives in the discovery of several bottles of the toxin ricin in a Las Vegas hotel room, it was reported Saturday.