Four months had passed since she was last seen alive.

They drove off together and he was never seen alive again.

This species has never been seen alive, so nothing is known of its behavior.

On reflection, living in the city, he had never seen one alive.

To his knowledge, the species had only been seen alive twice until then.

He was last seen alive the evening of April 25, 2009.

He was last seen alive by people in the building yesterday morning.

It was the last time that they were ever seen alive.

She was last seen alive at around 10:30 pm talking to a young man.

This is the last time that the young man was seen alive.