The father of a missing infant has been arrested, and Secret Witness is offering a reward for information. Matthew Graham was taken into custody Friday morning for a probation violation. 6-month-old Ember Graham was last seen at about 10:30PM Wednesday inside her crib at her home on Noosha Lane in Happy Valley. Matthew called the sheriff's office at about 5:30AM Thursday to report the disappearance of his daughter. The baby has a seizure disorder so she's considered at risk, wherever she is. Family members have been interviewed, including the baby's mother,19-year-old Jamie Graham, who lives in Anderson. A number of agencies are involved in the case, though no Amber Alert has been issued because there's no evidence of an abduction. The sheriff's office issued a reverse 911 call Friday morning asking for the publics help in locating the missing infant.Secret Witness is offering a 10-Thousand Dollar reward at 243-2319 or online at scsecretwitness.com. Anyone with information is urged to contact the sheriff's office.