The Dodge County release said Riess is believed to be driving Hutchinson's vehicle, a white Acura TL, last seen with the Florida license plate Y37TAA. Investigators say Riess targeted Hutchinson due to their similar appearance, and allege that after shooting her Riess stole her victim's money, credit cards, identification and vehicle.
Riess, 56, of Blooming Prairie is accused of killing her husband in Minnesota and later a woman in Florida.
Riess, of rural Blooming Prairie, was last spotted in southern Texas, far from the Dodge County farm home where 54-year-old husband David Riess was found dead in late March. Instead, anyone who sees her is asked to call 911.
Reiss is now accused of also killing a woman she she met at a brewery in Fort Meyers, Florida.
Reiss is considered armed and unsafe and should not be approached.
Seven killed in deadliest USA prison riot in 25 years
Henry McMaster said these types of incidents are avoided, or kept to a minimum, by rules and regulations, protocol and training. In 2015, a riot was sparked when correctional officers attempted to remove a homemade weapon from a inmates cell.
"Riess may look like anyone's mother or grandmother, but she's an absolute coldblooded murderer", Marceno said on the Today show interview.
The tape - a seven-second video clip - shows Riess in a Fort Myers Beach restaurant with Pamela Hutchinson, 59, of Bradenton, Florida, on April 5.
A release from the Dodge County Sheriff's Department in Minnesota Tuesday said the Marshals Service has updated the case to Major Case status. She is believed to be in the Corpus Christi, [Texas], area. Riess has no criminal record, according to authorities. Marceno said that she will eventually run out of resources and fears that, in desperation, she could kill again.
The Lee County Sheriff's Office in Florida has issued a warrant for Riess' arrest.
Late last week, Florida authorities filed murder, grand theft of a motor vehicle and grand theft and criminal use of personal identification charges against Riess.