Being a realist, the detective could not accept the statement of the accused that UFOs has caused the disturbance.

Since he wasa realist, the detective could not accept the statementof the accused that UFOshas caused the disturbance

being a realist, the detective could not accept the statement of the accused the UFOs had caused the disturbances

Being that he was a realist, the detective could not accept the statement of the accused that UFOs had caused the disturbance

Realist that he was, the detective could not accept the statement of the accused that UFOs had caused the disturbance