(CNN) -- To a friend of more than 20 years, Manssor Arbabsiar was a man who liked to be called "Jack" and didn't seem to have strong views on politics or religion. 

To U.S. authorities, the 56-year-old naturalized U.S. citizen is a suspect in an alleged Iranian plot to assassinate Saudi Arabia's ambassador to the United States. 

"It was shocking because it didn't seem like he would be the type of person to do something like that," said Mitchel Hamauei, who said he met Arbabsiar through mutual Iranian friends. 

"He was a happy go lucky guy, always joked around," Hamauei said. "He had a really happy demeanor." 

Hamauei, who runs a gyro and kebab restaurant in Corpus Christi, Texas, said the two were close enough that he attended the graduation of Arbabsiar's son. 

"I know his wife and his son. They're very down-to-earth people," Hamauei said. 

The two kept in touch even after Arbabsiar moved to Austin about four or five years ago. 

"I saw him about a year ago. He came by the store to eat a sandwich." 

Arbabsiar was a used car salesman, Hamauei said. Their conversations would be about "life in general," he said. "Nothing religious. Nothing political." 

"He would go out and party," Hamauei said. "As far as I know he never practiced religion." 

Martha Guerrero, Arbabsiar's estranged wife, told the Austin, Texas, station KVUE Tuesday that they've "been separated for a long time" and she doesn't know anything about his affairs. 

However, she believes he is innocent. 
Who liked to be called something?
What did he like to be called?
Was he a very serious guy?
How was he?
Was he really opinionated about politics?
Had he planned something?
Did people suspect he was like that?
What was the raction?
What was his job like?
Would he keep to himself at home?
What would he do?
Does he have any family?
Who?
Is he close to his wife?
Is she convinced of his guilt?
What does she think about this?
Who did she talk to?
What was her name?
When did her husband come to Austin?
Did his old friend still see him?
When?
Manssor Arbabsiar
 Manssor Arbabsiar was a man who liked to be called "Jack"
Jack
who liked to be called "Jack
no
"He was a happy go lucky guy, always joked around," Hamauei said. "He had a really happy demeanor." 
happy go lucky
He was a happy go lucky guy
no
Jack" and didn't seem to have strong views on politics
to assassinate Saudi Arabia's ambassador to the United States.
56-year-old naturalized U.S. citizen is a suspect in an alleged Iranian plot to assassinate Saudi Arabia's ambassador to the United States. 
no
It was shocking because it didn't seem like he would be the type of person to do something like that,"
shock
It was shocking because it didn't seem like he would be the type of person to do something like that,
he was a used car salesman
Arbabsiar was a used car salesman
no
He would go out and party,"
go out and party,
He would go out and party,
yes
I know his wife and his son
a wife and son.
"I know his wife and his son.
they are estranged
Martha Guerrero, Arbabsiar's estranged wife,
no
Martha Guerrero, Arbabsiar's estranged wife, told the Austin, Texas, station KVUE Tuesday that they've "been separated for a long time" and she doesn't know anything about his affairs. 
that he is innocent.
she believes he is innocent.
Austin, Texas, station KVUE
Martha Guerrero, Arbabsiar's estranged wife, told the Austin, Texas, station KVUE Tuesda
Martha Guerrero
Martha Guerrero, Arbabsiar's estranged wife
about four or five years ago
The two kept in touch even after Arbabsiar moved to Austin about four or five years ago. 
yes
I saw him about a year ago.
about a year ago.
I saw him about a year ago.