Since the killer known as Jack The Ripper was never caught there is no way to know if he even had any children. Chances are very good though that he did not. Serial killers usually kill strangers. It is very easy to be caught when your relatives begin dying off in quick succession.
It is a popular misconception that Jack The Ripper just disappeared in November 1888, after the murder of Mary Kelly. I really have no idea how this idea ever started. But it gave rise to the theory that the killer must have died, most likely by his own hand. Because Montegue John Druitt was found floating in the Thames with rocks in his pockets shortly after Kelly's death, it elevated him to a prime suspect. London's most notorious killer was never caught so it is impossible to say how he died but his killing went on for years.
Jack The Ripper not only tried but succeeded in killing prostitutes, exactly how many is hotly debated. Whatever his day job was he was very adept as a murderer.
Annie Chapman
Fridays
It is presumed 'Jack' used a knife.
Jack killed 30 September 1888.
midnight
As far as we know - yes.Yes he did
30 Sept. 1888
Catherine Eddowes.
A guys called Jack The Ripper
If you mean Jack the Ripper, he killed his victims with a knife, cutting the throats of women and then cutting out vital organs.
Mary Jane Kelly.
On Friday, 7th September 1888, Annie Chapman became the second victim of Jack the Ripper. The estimated time was 4.30 am or before.