yes. He was brought in to help with the planned post-assassination rebellion.
Francis Tresham
I think you mean Francis Tresham and he was one of the plotters
There were 13: Robert Catesby, Robert Keyes, Ambrose Rookwood, Thomas Wintour, Sir Everard Digby, Thomas Percy, Francis Tresham and Thomas Bates
He sent a letter to Parliment saying it was gong to be blown up because his brother was in Parliment the same day as James I
the plotters were John Wright, Christopher Wright, Thomas Wintour, Robert Wintour, Thomas Percy, Guido Fawkes, Robert Keys, Thomas Bates, John Grant, Sir Ambrose Rookwood, Sir Everard Digby and Francis Tresham
Robert and Thomas Wintour,Thomas Percy,Christopher and John Wright,Francis Tresham,Everard Digby,Ambrose Rookwood,Thomas Bates,Robert Keyes,Hugh Owen,John Grant and the man who is said to have organised the whole plotRobert Catesby
there were 13 in total, so choose one: Robert Catesby Thomas Wintour Jack Wright Thomas Percy Guy Fawkes Robert Wintour Christopher Wright Robert Keyes Thomas Bates John Grant Ambrose Rookwood Francis Tresham Evard Digby
James I was not killed by Guy Fawkes, the plot was discovered in time. The Gunpowder Plot, an attempt to kill James I and most of the Protestant aristoracy was led by Robert Catesby. Others involved in the plot were Thomas and Robert Winter, John and Christopher Wright, Robert Keyes, Thomas Percy, John Grant, Ambrose Rokewood, Sir Everard Digby, Francis Tresham and Thomas Bates.
The Gunpowder Plot of 1605 is also referred to as the Gunpowder Treason Plot. This plot was a plot to blow up James the First. One can learn more specifics about this plot on the History website.
The gunpowder was being hidden in the gunpowder plot. It was hidden in a cellar under the house of parliament.
In the Gunpowder Plot, the gunpowder was located underneath the House of Lords. Everyone that participated in the plot was sentenced to death.
John Grant - Gunpowder Plot - was born in 1570.