(CNN) -- A year to the day after he killed his girlfriend, South African "blade runner" Oscar Pistorius broke his silence Friday, describing her death as a "devastating accident." 

The double amputee Olympic star is charged with premeditated murder in the shooting death of his girlfriend, Reeva Steenkamp, a model and law school graduate. 

He has never denied killing the woman he calls the love of his life on Valentine's Day last year. 

But he maintains that he mistook her for a home invader when he shot her in the bathroom of his upscale home in Pretoria. 

Since being freed on bail, he has remained largely out of the spotlight. He released a statement Friday, the anniversary of her death, saying he will carry the "complete trauma" of the day forever. 

"No words can adequately capture my feelings about the devastating accident that has caused such heartache for everyone who truly loved -- and continues to love Reeva," he said on his website. 

"The pain and sadness -- especially for Reeva's parents, family and friends consumes me with sorrow." 

Pistorius, an Olympic sprinter, also tweeted about her death for the first time since the shooting. 

"A few words from my heart," the tweet said, linking to the statement on his website. 

His statement got mixed reviews on social media. 

"Apparently Oscar Pistorius is 'consumed by sorrow'. All these perpetrators claiming victim status. Again, I want to scream," Marianna Tortell tweeted. 

Others were more forgiving. 

"God bless you, Oscar," @Sissi_olcp tweeted. "Such kind and heartfelt words. My thoughts and prayers are with you, your family and Reeva's loved ones." 
who died?
who was her partner?
did she die of natural causes?
how did she die?
when did this happen?
on what day?
did it occur outdoors?
where did it occur?
in the kitchen?
in what room?
where is the house located?
is it a modest house?
did he mean to shoot her?
what was her profession?
was she educated?
in what field?
why did he shoot her?
will he ever forget what happened?
what was his profession?
what is his nationality?
Reeva Steenkamp
death of his girlfriend, Reeva Steenkamp
Oscar Pistorius
he killed his girlfriend, South African "blade runner" Oscar Pistorius
No
the shooting death of his girlfriend
she was shot
 shooting death of his girlfriend
last year
killing the woman he calls the love of his life on Valentine's Day last year
Valentine's Day
killing the woman he calls the love of his life on Valentine's Day last year. 
No
he shot her in the bathroom of his upscale home in Pretoria. 
in his home
he shot her in the bathroom of his upscale home in Pretoria. 
No
he shot her in the bathroom 
the bathroom
he shot her in the bathroom
in Pretoria
home in Pretoria
No
his upscale home
No
describing her death as a "devastating accident."
she was a model
Reeva Steenkamp, a model
Yes
Reeva Steenkamp, a model and law school graduate
the law
Reeva Steenkamp, a model and law school graduate.
he mistook her for a home invader
he maintains that he mistook her for a home invader
No
aying he will carry the "complete trauma" of the day forever.
Olympic sprinter
Pistorius, an Olympic sprinter
South African
A year to the day after he killed his girlfriend, South African "blade runner" Oscar Pistorius