After getting Veins to start at the beginning, relating his reasons for suspecting this is somehow related to the daughter and showing her the diary, comes up with a better idea.
"We can't just arrest Cassandra. For one thing, it's not exactly within the remit of our cover identities to arrest our wards. Second, remember that Firefox ordered us to maintain the Senator as a UNITAS asset: screwing over his daughter isn't going to help there. Thirdly, you're forgetting that the people intercepted by Leadfoot and our pet psychopath were targeting the twins, which suggests that they may not have been responsible. Which leads to four, what one twin knows the likelihood is that the other does too, so... Oh bugger! One of you call Leadfoot and have her and the nutter get around to the girlfriend's place. She's either the person behind today's escapades or the next target. If she's not dead already."
As that call goes through, Cleo ushers the other two back to their car, leaving the crime scene in the hands of Hicks, who had been one of the Agents with Veins. She's on the phone herself, setting up a safe house with her contact. "We'll have somewhere secure to debrief them in about 8 hours," she goes on, taking shotgun. "Once that's set up and we've got everyone together, the nutter will set off the fire alarm and kill the hotel power supply, giving us a pretext to move them to where we'll be undisturbed.
"The way I see it, the Senator arranges for the missus to be bumped off. No argument there. But I don't think the daughter or daughters are out to kill him: it's just not satisfying enough. Destroying him, publically humiliating him; given their training, that's the way I'd go if I were them."
[sblock=Contact's check]
Networking/Contact (1d20+6=19)
Networking/Contact (2d6=7)
[/sblock]