Fix lack of consistency problems in the given paragraph:
The Enterprise rendezvous with a Romulan warbird and, despite Picard's unease about the situation, T'Pel transports aboard. Something interrupts the transporter signal and the ambassador is killed.
The Enterprise rendezvous with a Romulan warbird and, despite Picard's unease about the situation, T'Pel transports aboard. However, something interrupts the transporter signal and the ambassador is killed.