Lawyers for Lee, 51, who had maintained his innocence for years, had launched last-minute appeals to halt the execution with federal courts and the Supreme Court.
On February 9, 1993, 26-year-old Debra Reese was sexually assaulted and murdered in her own home.
"I pray this lawful execution helps bring closure for the Reese family", Arkansas Attorney General Leslie Rutledge said in a statement. "This assembly line of executions must stop and this cruel and inhuman punishment should be ended once and for all".
A spokesman for Arkansas governor Asa Hutchinson, who scheduled the multiple executions, said: "Justice was carried out". "Justice was carried out".
"It is inappropriate for the state to rush to execute before a defendant's innocence claim can be properly examined", said Nina Morrison, a senior staff attorney with the Innocence Project. The state originally scheduled an unprecedented eight executions within an 11-day window, but several are now tied up in the courts.
The court also, however, stayed a lower court's injunction on Thursday afternoon that was preventing the state from being able to use one of the three drugs it uses in its execution protocol.
Lawyers for the state have complained that the inmates are filing court papers just to run out the clock on Arkansas' midazolam supply.
Hikma also wrote letters to the Correction Department previous year seeking the return of its drugs.
Arkansas had scheduled eight executions over an 11-day period before the end of April, when its supply of a different lethal injection drug expires. OH officials allegedly inquired about drugs through its mental health department, and Texas allegedly used a drug registration number for a long-shuttered prison hospital.
McKesson Medical Surgical Inc. argued its vecuronium bromide was intended only for medical purposes, not executions, and that the Arkansas Department of Corrections "misled" the company when it purchased the drug, according to a court brief.
Five justices would have blocked the executions by granting one of the inmate's requests to halt them.
The Arkansas attorney general's office says it won't appeal an order halting the execution of Stacey Johnson. One of the drugs in the Arkansas mix, midazolam, had been used in flawed executions in Oklahoma and Arizona, where witnesses said the inmates appeared to twist in pain on death-chamber gurneys. The pharmaceutical companies say there is a public health risk if their drugs are diverted for use in executions, and that the state's possession of the drugs violates rules within their distribution networks. No one from the state would say why they wanted the lawsuit removed from Pulaski County or why they preferred to have the case heard in Faulkner County Circuit Court.
Johnson and Lee had both said they were innocent. They've asked that the court allow new DNA testing of a hair found at the scene and a drop of blood found on Lee's shoe.
Reese's relatives were at the Cummins Unit prison and told local news media Lee deserves to die for a crime that upended their lives.
"The spokesman, Solomon Graves, said the two are being held in separate cells adjacent to the execution chamber, which is a short drive down the road from the Varner Unit, another prison that houses death-row inmates".
Thousands march in Venezuela against government
Two Venezuelan students and a National Guard sergeant have died after shots were fired during protests in Venezuela. In Washington, administration officials are anxious the Venezuela government is working to suppress the opposition.
Aya Hijazi, 30, was flown home on a US government plane Thursday after she was freed by a Cairo court on April 16. Her case was on the agenda when Trump met this month with Egyptian President Abdel-Fattah el-Sissi.
Amid the confusion, mothers and newborn children had to be evacuated from a maternity hospital when it was swamped with tear gas. They were met by a curtain of tear gas and rubber bullets as they tried to march to downtown Caracas .
From the "Come Together and Fight Back" tour's kickoff rally in ME on Monday, Democrats witnessed that old habits die hard. Sanders repeatedly faced criticism during the 2016 Democratic primary for his refusal to join the party.
Elections are to be held in England for directly elected mayors in six devolved new super-regions plus two existing councils. Forty-two per cent said they would vote Conservative , 40pc Labour , 2pc Liberal Democrats, 4pc Ukip and 12pc were unsure.
The SFMTA said in a tweet that people should treat intersections as four-way stops due to "scattered" power outages citywide. Mon Alicia took to twitter to comment: "I always thought The Big One would throw San Francisco into mass chaos.
To put this into perspective, the the Xbox One sold 2 million units in 18 days whereas Sony sold 2.1 million units within 14 days. NPD's data accounts only for US sales, but the current global estimate puts March Switch totals at 2.4 million consoles sold.
After four years in preventive detention, he was sentenced to 15 years in prison for attempted murder in 2005. Cheroufi then ran down the pavement, continuing to shoot at policemen who were patroling on foot.
3 killed in shooting at Russian intelligence agency's office
Social media users posted pictures of police cordons around the FSB building in Khabarovsk with special forces standing by. A FSB officer and a visitor, a CIS member state citizen, died in the shooting, while another visitor suffered wounds.
Attentat sur les Champs-Elysées : Identité du tireur
A l'époque, il avait tiré sur un élève policier et son frère après une course-poursuite alors qu'il conduisait une voiture volée. Le tireur a ensuite tenté de prendre la fuite avant d'être abattu par les forces de l'ordre.