A second man claiming he was sexually abused by former Pennsylvania State University football coach Jerry Sandusky has begun legal proceedings against him. The man represents a 12th alleged victim of Sandusky.

The purported victim, identified in court filings as "C. Miller," filed notice Thursday in Philadelphia of an impending suit and has 20 days to enter an outline of his allegations against the former coach.

His filing also names as defendants Penn State and the Second Mile - the nonprofit organization Sandusky founded for troubled youths. It comes three days after another Philadelphia lawsuit became the first civil action filed in the widening sex scandal.

Miller's attorney - Charles Schmidt - did not return calls for comment Friday. He has previously described his client as a central Pennsylvania man who met Sandusky through Second Mile programs.

Sandusky invited the young man - who was 12 at the time of the alleged abuse - to his office, gave him whiskey, and touched his genitals, Schmidt has said. After the death of his mother, the boy purportedly formed a close relationship with the Second Mile founder.

Attorney Jeff Anderson made similar accusations on behalf of his client last month at a news conference announcing the filing of his own suit. That man - a 29-year-old identified as "John Doe A" - claimed Sandusky abused him more than 100 times during a four-year period starting when he was 10.

Both legal actions were filed in Philadelphia because they allege the abuse occurred there.

Neither Schmidt's client nor Anderson's was among the 10 victims at the center of Sandusky's ongoing criminal case.

Since Sandusky's arrest, officials at Penn State and the Second Mile have vowed to cooperate with ongoing investigations, but they have remained tight-lipped about specific cases.

Contact staff writer Jeremy Roebuck at 267-564-5218, jroebuck@phillynews.com,

or @inqmontco on Twitter.