annie mccormick explains why coming up. >>> also an accident in delaware county takes the life of an elderly man and leads to the arrest of a person warranted by police. >>> and hermine is off the coast and causing some concern along the jersey shore. >> now the details, philadelphia police expect to release the name of an officer involved in a shooting. action news has learned that the 19-year-old shooting victim is the shooter's son. annie mccormick has the full details. >> reporter: neighbors on this quiet block say they are surprised. this morning the police commissioner said this is very early in the investigation. 911 calls reporting a shooting started coming in around 6:30 monday evening. police descended upon this home. inside an off-duty philadelphia police officer got into an argument with a 19-year-old man. later identified as the officer's son. >> apparently they got into some type of argument or something. the off-duty accidentally or inadvertently discharged his weapon. we're still trying to figure that out whether it was intentional or not. >> shocked. the guy was usua

annie mccormick is live with the details. >> reporter: there are a dozen people inside of this building behind me, all of them got out safely, one firefighter did suffer minor injuries and one family suffered smoke inhalation but they were released from the hospital and they spoke to us and crediting their 7-year-old daughter for waking up just in time. >> it was smokey, and it's like dark and stuff. it was like we had to get out really fast. >> this image taken by an "action news" viewer showed the intense fire that woke 7-year-old serenity out of bed. >> my daughter woke up and said daddy and mommy there is smoke in the house. >> they broke a side window and got all three kids ages 7 to 2 on the fire escape. and medics took the family of five to crozier medical center and the blaze broke out at 12:30 this morning at the home converted in apartments. firefighters estimate there is at least a dozen occupants in the apartments. and the fire grew to two alarms and firefighters believe the cause is accidental and began in a second floor kitchen. >> i heard the apartment is on fire get out.

"action news" annie mccormick is live outside city hall where the memorial will tames later tonight. >> reporter: that's right, rick, the vigil is expected to takes place at 6:30 behind me on the north side of the city hall. city officials say they are in the early stages and harshing out the details and expect a wide range of speakers and talking to philadelphia police because they expect a large crowd. >> they need to come together in this moment of silence and find strength. this weekend's pre-planned philly pride parade and festival coincided with the devastating news and this sunday, they carried on with heavy heart and extra police security. >> yesterday thousand upon thousand also of people gathered for pride which is supposed to be celebrating livingunaapologe. >> reporter: outside flags are lowered to half staff including the american flag and the rainbow flag. several people we spoke to plan to take part in the vigil. >> i think it is important because it shows respect. they may not be from philadelphia or cover visiting on that particular day. at this point we have to supp