"He just walks every night, all night," one resident, Billy Washington, told Dallas television station WFAA earlier this week. "Every time I would look out my window, or out my door, he was walking."
Dixson has been part of the area's neighborhood crime-watch group, the Mill City Community Association, since January. The group's president, Alendra Lyons, called his arrest a "relief to the community."
"A lot of people have been fearful, of course," Lyons said in an interview Tuesday with The Associated Press. "They've been afraid."
Lyons said she wasn't aware of Dixson's criminal past and that the incident had spurred her group to look into whether it could afford background checks on new volunteers, so "at least we would be aware of what they have dealt with in the past."
Dixson was arrested as recently as last month on a deadly conduct charge, according to Dallas County records. State criminal records show Dixson was convicted of aggravated robbery in 1993. He served more than 10 years in prison, a state prisons spokeswoman said.
Dixson was also accused at that time of rape. The prosecutor in that case, Colleen Skinner, told the AP on Tuesday that she remembered the case because of its unique circumstances, including that the accuser was killed by a lightning strike and had told investigators she was held at gunpoint during the attack.
But the case couldn't be prosecuted without the victim's testimony, Skinner said.
"My hands were tied," she said. "Even if the rape kit had shown he was the perpetrator, I would need a witness to tell the jury that it wasn't consensual. I would need a witness to tell me, 'He forced me.'"
A $15,000 reward has been offered for information leading to arrests and an indictment in the recent cases.