It happened at Tyler Fitzgerald's on the 5300 block of Limestone Road. On Thursday July 15th, police say someone entered the bar's patio at about 5:00 a.m.
They say the suspect poured a flammable liquid over the area then lit it on fire.
Police are looking for any tips.
"There is a $2,500 reward. The police would like to know who the individual is, they can call here, we'll give them a code number, if we get an arrest and conviction, they come down here and collect the cash," said John Apeldorn of the Citizens Crime Commission.
If you do know anything, you're urged to call the Citizens Crime Commission at 215-546-TIPS. All calls do remain anonymous.