University of Pittsburgh plagued by a rash of bomb threats

Threats began on February 13th:

http://chronicle.com/article/Despite-Bomb-Threats-U-of/131472/

In mid-April a transgender couple, highly outspoken on transgender issues, was subpoenaed by a grand jury to be questioned about the threats:

http://www.post-gazette.com/stories/local/neighborhoods-city/subpoena-issued-in-pitt-bomb-threat-case-631287/

The couple insisted they are innocent:

http://www.pittsburghlive.com/x/pittsburghtrib/news/s_791666.html

Saturday night, a group calling themselves "The Threateners" took credit for the threats:

http://chronicle.com/article/Group-Says-It-Sent-Some-Bomb/131643/?sid=pm&utm_source=pm&utm_medium=en

"The Threateners" is a 1992 spy novel, the 26th in the Matt Helm series by Donald Hamilton:

http://en.wikipedia.org/wiki/The_Threateners

Following the email sent by "The Threateners," Pitt withdrew its offer of a $50,000 reward:

http://pittnews.com/newsstory/pitt-withdraws-reward-after-receiving-anonymous-email/

http://www.cbsnews.com/8301-201_162-57418992/report-threateners-end-pitt-bomb-claim-saga/

Note that the group only claimed responsibility for threats after March 30, not back to February 13th.

http://www.cbsnews.com/8301-201_162-57413109/another-wave-of-bomb-threats-at-the-university-of-pittsburgh/?tag=contentMain;contentBody

"The Threateners" now say their threats are at an end, since Pitt met their demand, i.e., withdrawal of the reward:

http://www.post-gazette.com/stories/news/education/threats-finished-at-pitt-email-claims-632695/

Is this strange saga really over?  Will anyone ever be caught and punished for either the first or these second wave of threats?

We all just have to stay tuned, I guess.