Doyle, 29, was convicted of beating food delivery woman Hyun Cho,
a South Korean native, to death in 2003 with a baseball bat, putting
her body in a trash can and stealing her car.
Doyle was pronounced dead at 6:49 p.m. CDT (2349 GMT) at the state's
death chamber in Huntsville after receiving a lethal injection. He
did not make a last statement, a Department of Criminal Justice
Texas, which has executed more people than any other state since the
U.S. Supreme Court reinstated the death penalty in 1976, has
obtained a fresh batch of its execution drug pentobarbital, the
Department of Criminal Justice said this month, without revealing
On Thursday, a state judge ordered Texas to release the name of its
new drug supplier. The state attorney general's office said it would
appeal the ruling.
The decision was for two inmates due to be executed in April and had
no impact on Doyle's execution.
Many other U.S. states have been struggling to obtain drugs for
executions after pharmaceutical firms, mostly in Europe, imposed
sales bans because they object to having medications used in lethal
Oklahoma has had to postpone two executions planned for this month
because it could not find drugs. Alabama said this week it has run
out of one of the main drugs it uses, putting on hold executions for
16 inmates who have exhausted appeals and face capital punishment.
Several states have looked to alter the chemicals used for lethal
injection and keep the suppliers' identities secret. They have also
turned to lightly regulated compounding pharmacies that can mix
But an Oklahoma judge ruled on Wednesday that the state's secrecy on
its lethal injections protocols was unconstitutional, a decision
that could delay executions in other states where death row inmates
are planning to launch similar challenges.
[to top of second column]
Texas plans to execute five more inmates between now and the end of
May, about the same number as every other state combined for the
period, according to the Death Penalty Information Center, a
non-profit organization which monitors capital punishment.
Doyle was the fourth person executed in Texas this year and the
512th in the state since the death penalty was reinstated.
But executions overall have been on the decline in Texas, after
hitting a peak of 40 in 2000. Since 2010, Texas has averaged about
15 executions a year.
The high costs of prosecutions and the availability of a sentence of
life without parole have caused capital punishment convictions to
fall to about 10 or less a year in recent years.
"We are now very selective in what we choose to go after as death
penalty cases, instead of deciding that every single murder that we
try will be a capital case," said Susan Reed, the district attorney
in San Antonio and a death penalty supporter.
(Additional reporting by Jim Forsyth in San Antonio and Heide
Brandes in Oklahoma City; editing by Lisa Shumaker and Jonathan Oatis)
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