The mother of Baltimore Ravens defensive lineman Calais Campbell, Nateal Campbell, is found dead at a home in Atlanta, according to multiple reports. Officers respond to the residence on Tuesday after a welfare check and arrive to find Nateal Campbell unresponsive. Police say her death is under investigation and that Nateal Campbell, 71, is deceased at the scene.

Authorities charge Nateal Campbell’s son, Calais Campbell’s brother, identified in reports as Ciarre Campbell. NBC News and other outlets report that police name Ciarre Campbell as a suspect and that he faces a murder charge. The Guardian reports that an arrest warrant alleges Nateal Campbell’s throat was cut and that Ciarre Campbell was found in possession of a knife when police arrived. The reports also indicate that Calais Campbell’s family requests privacy following the death.

Several outlets describe the case as involving a welfare check call connected to a possible mental-health issue. Details beyond the charge and allegations, including the full circumstances of the death, remain under investigation.