People have been dropping off cards and flowers at the home of Randy and Amy Loughner Wednesday.
One of them was nurse Lisa Campbell, who lives about three miles away and doesn't know the couple.
She brought by a card and flowers. Campbell said in the card were her name and phone number - in case they wanted someone to talk to.
Campbell said she wanted the Loughners to know they had the support of Tucsonians.
The LoughnersTuesday expressing remorse over the shooting.
"This is a very difficult time for us," reads the statement. "We ask the media to respect our privacy. There are no words that can possibly express how we feel. We wish that there were, so we could make you feel better. We don't understand why this happened.
"It may not make any difference, but we wish that we could change the heinous events of Saturday," the statement continues. "We care very deeply about the victims and their families. We are so very sorry for their loss."
In the days since the shooting, numerous bits of information have emerged that paint a portrait of the 22-year-old Loughner as a disturbed man who alienated most of those around him. His relationship with his father has been described by people who knew the family as strained.
On the morning of the shooting, Loughner was seen running into the desert as his- a scene that took place after his father saw him removing a mysterious black bag from the family's car. According to authorities, Loughner purchased ammunition that morning and was later .
Documents recently released from Pima County Community College detailed how Loughner's on-campus behavior, menacing, even delusional
The school reports provide the most detailed accounts so far of Loughner's troubles at the college, and he is depicted at times as "creepy," "very hostile" and "having difficulty understanding what he had done wrong in the classroom." School officials have not said if the reports were shared with any authorities beyond campus.
During his first outburst, in a poetry class, he made comments about abortion, wars and killing people, then asked: "Why don't we just strap bombs to babies?"
Loughner remains in jail, facing five federal charges stemming from the shooting.