RALEIGH, N.C. — Raleigh police have more evidence in the case of 30-year-old Eric Miller, an UNC researcher who may have been poisoned.

According to a search warrant, detectives looked through Ann Miller's lab at the Glaxo Wellcome Venture Building near Research Triangle Park. They found 200 milliliters of sodium cacodylate, a toxic arsenic compound that can kill you, according to the Carolinas Poison Center.

Investigators visited the lab Dec. 4, two days after her husband died of suspected arsenic poisoning at Rex Hospital. Police say, for two weeks before he died, he was treated at Rex and UNC Hospitals after becoming violently ill.

Miller, a research scientist at the Lineberger Cancer Center at UNC Chapel Hill, lived in his West Raleigh home with his wife and their baby daughter. According to police, neither of them has been sick,

So far, no one has been charged with Miller's death. Raleigh police do not expect to wrap up the case for a while.