[s3e2] In Birth And Death Official

The killer is Joe Smith, played by guest star Eddie Cibrian .

Despite these internal crises, the remaining members—including Derek Morgan, JJ, Reid, and Garcia—must investigate a serial killer in Milwaukee. Key Plot Details [S3E2] In Birth and Death

Smith is a particularly manipulative serial killer who uses his young son to lure women into a false sense of security before abducting and murdering them. The killer is Joe Smith, played by guest star Eddie Cibrian