The situation as written text:
An attacking player is having an obvious goal-scoring opportunity: Having already left all other defenders behind him, he is only facing the goalkeeper and decides to shoot. The goalkeeper is unable to save the shot, so that the ball is about to go into the goal.
A physio - listed on the match report as belonging to the defending team - is following the attack from the goalline already for a while. When he recognizes that the goalkeeper is beaten, the physio enters the field of play and clears the ball that would otherwise certainly result in a goal. Several frustrated players chase the fleeing physio - one of them, "Attacker A", even attempts to kick him to ground with a kungfu tackle.
1) What is the correct re-start of play?
2) What disciplinary sanction must be taken against "Attacker A?
1) Penalty Kick.
As the physiotherapist listed in the match report belongs to one of the teams, he is a "team official". In former times, play should have been re-started with a dropped ball from the position where a team official's interference occurred. The IFAB has modified Law 3 towards a more reasonable match sanction which is more in line with common sense:
From July 2016 on, such interferences by team officials result in a direct free-kick (if the interference occurred outside the penalty area) or penalty kick (if the interference occurred inside the penalty area including the penalty area line).
In this concrete situation, the interference occurred inside the penalty area: A penalty kick must be given and you should detailedly mention the situation and the team official's name in the match report.
(If no team official, but e.g. a substitute warming up behind the goalline had done this like in this video, then a direct free-kick (outside the penalty area) or penalty kick (inside the penalty area) would have been obligatory as well as a red card for the opponent in case of an obvious goal-scoring opportunity denied by the interference.)
2) Red Card.
Although a frustrated reaction of the non-offending team is understandable, (attempted) violent conducts have to be punished with a red card.
Correct Solution: Penalty Kick for the Attacking Team and Red Card against Attacker A.
How have you voted?
Overall, the results are OK. The majority of you has apparently been aware of the respective LotG-change. Those, who believed a dropped ball was the correct solution, are reminded on the circumstance that wrong re-starts might have fatal consequences.