Oberlin College photography professor Pipo Nguyen-Duy and his wife, Tran Thi Phong, were found shot dead in their Ohio home Wednesday, NBC News and The Guardian report. Nguyen-Duy was 64 and Phong was 56, the outlets report.

His son, Daniel Jones, 31, is charged with six counts of murder, four counts of felonious assault and one count of tampering with evidence, NBC News and The Guardian report. Bond was set at $3 million, the outlets report. Jones goes by the name Asia Nguyen-Duy, the outlets report.

Police first responded to a smoldering car with Oregon plates in a college parking lot, the outlets report. The car was registered to Jones, who was found nearby and taken into custody, NBC News and The Guardian report. Police then checked on the home and found the bodies after forcing their way in, the outlets report. Phong was the son's stepmother.

A prosecutor said Jones admitted to police that they had killed their family, NBC News reports. The weapon has not been found, the outlet reports. Police have not said what the motive was, the outlets report.

Nguyen-Duy came to the US from Vietnam as a political refugee and taught at Oberlin since 1998, the outlets report. He was a Guggenheim fellow, NBC News and The Guardian report. College president Carmen Twillie Ambar called him "a cherished colleague and a vibrant presence in the classroom," NBC News reports.

What we know: The professor and his wife were shot dead, and his son is charged with murder.
What we don't: The motive and whether the son has entered a plea.