The South Roxana Police Department is searching for three men in connection with the death of an East Alton woman found in a U-Haul van in February.
Police believe four men manufactured the methamphetamine that played a role in killing Frances M. Ragan, according to South Roxana Police Lt. Bob Coles.
Robert Stoces, 44, of Hartford, and Jeremy Loraine, 32, of Alton, are charged with aggravated unlawful participation in methamphetamine manufacturing and unlawful disposal of meth manufacturing waste.
Stoces is in custody for violating his parole on a previous meth manufacturing conviction.
Police are looking for Loraine, who is a registered sex offender.
Bail for Stoces and Loraine is set at $125,000 each.
Police are also seeking Russell Henry and Bruce Monahan, who are charged with unlawful disposal of meth manufacturing waste and unlawful use of property.
Henry, 58, and Monahan, 51, are both from Hartford. Their bail is set at $60,000 each.
Ragan, 42, was found dead in a van on Feb. 8.
The official cause of death is hypothermia but meth also appeared in Ragan's toxicology results, Cole said.
"They manufactured it and distributed and she partook in it," Cole said. "We'll hold them accountable for producing the narcotics."
Anyone with information on the suspect's whereabouts are asked to call the South Roxana Police Department at 254-7460.