The phrase "a young man subsequently" is correct and usable in written English.
It can be used to refer to a young man who follows or comes after a certain event or situation in a narrative or description.
Example: "After the incident, a young man subsequently approached the authorities to report what he had witnessed."
Alternatives: "a young man afterward" or "a young man later on".
She runs away afterwards with a younger man, but subsequently returns to her husband, a ruined but wiser girl.
Scully's role in "Deadalive" was partly based on the 1954 film Magnificent Obsession, in which a young man accidentally blinds a woman and subsequently becomes a doctor to cure her.
The author, who served as a young man in the Nazi Waffen SS, was subsequently declared persona non grata in the country by Israel's interior minister Eli Yishai, for his "attempt to fan the flames of hatred against the state of Israel and its people, and thus to advance the idea to which he publicly affiliated in his past donning of the SS uniform".
Unfortunately, a scheduling conflict forced Mickelson to skip the event, but Nicklaus was subsequently introduced to a young man from Cypress, California, by the name of Eldrick "Tiger" Woods.
The film -- which debuted at the Sundance Film Festival -- tells the story of a young man (LaBeouf) who heads to Romania after the death of his mother (Melissa Leo) and subsequently falls for a dangerous young woman (Evan Rachel Wood).
A young man dies in a nocturnal boating incident, and a fateful pact is subsequently made between the two friends who were with him.
Here, then, was a young man unafraid to parry and strike over an incident for which he was subsequently judged responsible and given a five-place grid penalty.
Another caller said that on the evening of March 16th her eleven- and twelve-year-old sons had seen a young girl they subsequently recognized from press photographs as Viviana sitting in a pickup truck, apparently fighting with a young man.
