"If he is, it wouldn't be the first time a guy who has done CI work has committed a crime," Cooper said.
Lt. C.A. Carpenter, head of the Metro Drug Unit, said Clark wasn't an informant for his agency. His history as a violent criminal would have precluded him from becoming an informant, he said.
"I am telling you unequivocally that he has never been an informant for the drug unit," Carpenter said. "Nor would he have been if he had approached us and asked. He would have been told no."
A Dunbar officer pulled Clark and Gravely over early Saturday morning on a routine traffic stop. Clark's car was searched and he was cited for possession of marijuana and driving on a suspended license.
Gravely also gave no indication that she was in danger from Clark, or that he was holding her against her will, said Dunbar Police Chief Earl Whittington.
Gravely had a domestic violence protective order against Clark, but that didn't show up when Dunbar officers checked for outstanding warrants on Clark through the Kanawha County Sheriff's Department, Whittington said. The Sheriff's Department's system doesn't include all information from Charleston police, he said.
Whittington also said he had no knowledge of Clark being an informant for police.
The state Crime Victims Compensation Fund has already agreed to pay for Gravely's funeral, but just when the money will come is isn't known, said Lisa Groves, a friend of Gravely's family.
She held a bucket to collect money Tuesday outside Advance Auto Parts for the Gravely family.
"We want to get out here and raise some awareness," said Groves, who said she was a victim of domestic violence herself.
While many people showed up to support Gravely's family, they were also concerned about their own safety. Several didn't want to speak for fear of retaliation from friends of Clark.
Clark has been calling friends from inside South Central Regional Jail and telling them to harass Gravely's family members, according to one person who did not wish to be named.
"I fault the system," said one man who was close to Gravely. "He should have been locked up. I knew I should have killed [Clark], for real."