A gunman shot and killed two women working at a northern Indiana convenience store Monday, and police were seeking a man who also was suspected of killing a teenage girl in Ohio.

Melvin M. Keeling (search), 43, was identified from images captured by a camera inside the store after the shooting was reported shortly after 10 a.m., authorities said.

Keeling, of Deerfield Township, Ohio, also was wanted for questioning in the shooting death about 3 1/2 hours earlier of Katelind Caudill (search), 13, at her grandmother's house about 25 miles northeast of Cincinnati, authorities said.

Keeling was wanted on charges of rape and gross sexual imposition involving a child in an unrelated case, the Warren County sheriff's office said.

Katelind was involved in that investigation but was not the victim, the sheriff's office said.

Lisa Kendall, 29, and Kendora Furr, 38, were found shot about 10 a.m. by a customer who went inside the convenience store because the gasoline pump was not on, The Journal and Courier of Lafayette reported.

One of the women died at the store, while the other was pronounced dead a short time later at a hospital, Chief Deputy Sheriff Terry Risner said.

Investigators believe the shootings occurred during an attempted robbery and that something must have scared the gunman, Risner said.