10:42 PM

Jeffery Grinder, 32, (l.) & Calvin Adams, 39

A nationwide manhunt is underway for two escaped murderers out of Arkansas that have ties to the Ozarks.

Cops say that 32 year-old Jeffery Grinder and 39 year-old Calvin Adams ditched their prison issued clothing and changed into guards uniforms, which are made at the prison, just after early evening head count at the Cummins Unit in Grady, AR.

Both Grinder and Adams were serving sentences of life without the possibility of parole.

Video surveillance shows the men put them in the prison library after the 6 p.m. headcount and walking out of the prison in them during a shift change less than 20 minutes later. Officials realized the men were missing after during the 10 p.m. inmate headcount......giving the escapees at least a three hour jump on law officials.

On Septemeber 2, 2003, Grinder kicked in the door of an elderly man who was asleep on his couch. In 2004 he pleaded guilty to robbing and beating 77-year-old Pat Gardner to death with a dry-wall hammer. Gardener, a widower, couldn't hear what was happening because he was sleeping without his hearing aid when Grinder attacked him.

In 1994 Adams (a.) was 24 when he kidnapped 25 year-old Richard "Richie" Austin and his pregnant wife, Cassandra. Austin was a vice-president at Leachville State Bank. Adams was originally going to force Austin to open the bank's vault, but when he found out the vault was opened by time release he decided to kill the couple.
Adams drove the Austin's to a remote levee just east of Leachville where he shot Richard three times in the head. Cassandra was shot in the head and arm but managed to get up and stumble to a farmhouse that was over a mile away for help.

It appears that Grinder and Adams had help with their escape because they duo made their way to a 2003 four-door burgundy or maroon Hyundai Sonata, AR plate 595-NYM that had been in the prison parking lot since Thursday.

Grinder has family ties to Baxter County, Arkansas. Sheriff John Montgomery say that Grinder has made implied threats to two people in Baxter County and another person in Marion County, Arkansas. Marion County adjoins Baxter County to the west.

Sheriff Montgomery says that, "those individuals have been notified, and precautions for their safety have been put in place."

Adams has father and stepmother live in Thayer, Missouri, which is not far from Baxter County, Arkansas.

Both were spotted in southeast Missouri yesterday (05-30-09) afternoon and are believed to be headed for Minnesota or the Canadian border. Police say the pair are armed and extremely dangerous.

If you see them call 9-1-1 or your state police.

UPDATE (06-01-09):

Authorities in Arkansas believe that Grinder and Adams are in the boot heel of Missouri. Tips of sighting of the convicted killers have come in from Hayti and Braggadocio. They say that leads in Arkansas and Texas have not panned out to be the escaped convicts.
Adams was spotted about an hour west of Kalamazoo, Michigan. Adams, who is from Fennville, was spotted talking to a male relative about 11 a.m. this morning.
Prison officials believe that Grinder and Adams are still on the run together.
2:30 p.m.
Authorities are concentrating their search for two convicted killers who escaped from an Arkansas prison last Friday (05-29-09) in the western part of Michigan
Cops say that someone saw Calvin Adams talking with a male relative about 11 this morning near Fennville.
A tracking dog picked up on Adams scent in a wooded area nearby the relatives house but quit tracking at a paved road where cops believe a getaway car was parked.
UPDATE (06-02-09):
Three people have been arrested on charges of helping two convicted killers escape from an Arkansas prison last Friday.
Authorities say that Little Rock residents Deana Davison and Ryan McKinney and Michael Stephenson of Jacksonville left a 2003 Hyundai Sonata for Jeffery Grinder and Calvin Adams in the parking lot of the Cummins Unit in Grady Thursday.
Grady is about an hour from Little Rock.
The three were arrested and charged on Saturday with furnishing an implement for escape, a felony, according to Arkansas State Police spokesman Bill Sadler.