A lot of these lines will depend on improvising based on what eventual 'on the scene' reports are chosen, so improvising based on what are provided in the role corresponding to the reports would be for the best. Examples might be 'Tom Jennings was the first man on the scene" or "We managed to get ahold of the recently widowed husband to hear his side of the story". 
Go for a snarky, compelling, nosy take on the reporter. Middle aged is also acceptable for age.