Matthew Rocheleau

The BAU team profiles a serial killer who uses the Internet as his hunting ground, bringing a whole meaning to the term "social networking."

Leona and Reece look to raise cash in order to salvage ACN and thwart Blair and Randy. Will gets a surprise at the White House Correspondents' Dinner, while Charlie trades visions with ACN suitor Lucas Pruit. Maggie's EPA scoop makes it to News Night. Sloan and Don try to keep their relationship a secret from the new HR veep.

Danny and Baez investigate the death of a teenage girl who appears to have been pushed in front of a subway car by a homeless man. Meanwhile, Frank is annoyed at having to meet with the newly appointed Inspector General who will now have oversight of NYPD policy. Bebe Neuwirth recurs as the new Inspector General, Kelly Peterson.

Brenda's squad picks up a case from Hollywood involving the brutal murder of an aspiring actress who made a date through an online service. But Brenda's investigation is forced to take second fiddle while she prepares for an interview with the mayor to become the next Chief of Police, a job Brenda is still not even sure she wants. Recurring guest star MARY McDONNELL appears as Captain Raydor.

Although Dre and Rainbow find they always end up quarreling on their annual Valentine's Day date, this time around, Dre is determined to do everything right and keep the peace. Meanwhile, Diane realizes she may not have received many Valentine's cards because she is too critical, so her siblings decide to teach her how to give a compliment.