Use Cluedoku Skills to Find the Killer!

Here's where you can try Pseudo Cluedo by Marty Sears: https://sudokupad.app/el9sus7p0o
A murder has been committed in Grid Mansion! Dr Awkward has been found dead, and there are six suspects. Can you work out who did it? Normal sudoku rules apply: place the digits 1-9 once each in every row, column, and 3x3 room.
FIND YOUR PATH:
• Draw a line passing through the centres of some cells to represent your journey from room to room, as you interrogate suspects and look for clues.
• Your path must start at one of the lettered cells (these are initials labelling the six suspects and the victim.) The path must finish at another lettered cell, and visit all the other lettered cells along the way.
• Your path may move orthogonally or diagonally between cells, but may not cross itself.
• You may not pass through a thick black wall; you can only get from room to room by travelling through the CENTRE of a doorway. For some doorways this may mean you have to go through diagonally.
• The value of digits along your path must constantly increase or stay the same (like a slow thermometer). You must never move from a higher value to a lower value.
PSEUDO CELLS:
• Every row, column and room has exactly one 'pseudo cell'. These 9 pseudo cells contain the digits 1-9 once each.• For the purposes of your path, and for the weapon, victim and suspect rules below, the value of a pseudo cell equals its room number (regardless of which digit appears in the cell.) Rooms are numbered from 1-9 in reading order. Eg: room 1 is in the top left, room 7 is in the bottom left.
WEAPONS:
• Some weapons have been found, at locations marked by an X. The values of the two cells separated by a weapon sum to 10.
THE VICTIM:
• Dr Awkward's body was found lying awkwardly in the doorway between rooms 4 and 7. This has been marked by a white outline. All that's known about the victim is that the values of his cells form a palindrome, reading the same from either end.
THE SUSPECTS:
• Digits do not repeat in a ..