An alleged teenage gunman has surrendered in connection with the murder of a Philadelphia man who was shot and killed last week while walking his dog . Tyfine Hamilton , 15 , turned himself in on Friday in connection with the murder of James Stuhlman , 51 , who was shot and killed while walking his dog in Philadelphia 's Overbrook section last week . Brandon Smith , Hamilton 's 15-year-old classmate from Overbrook High School was already in custody along with another 14-year-old boy for the crime . Scroll down for video . Gunman : Tyfine Hamilton , 15 , pictured , turned himself in Friday in connection with the murder of James Stuhlman , 51 , who was shot and killed while walking his dog in Philadelphia 's Overbrook section last week . Classmates : Hamilton 's classmate from Overbrook High School , Brandon Smith , 15 , right , was already in custody along with another 14-year-old boy . Victim : Stuhlman was out walking his dog at 8:30 p.m. last Thursday on the 6400 block of Woodcrest Avenue when police said he was approached by three juveniles attempting a robbery . Police said that both Hamilton and Smith have been charged with murder and robbery , and each have confessed to carrying out the murder , according to Action News . However , officers have not yet located the murder weapon , but have received information on where it is located . Stuhlman was out walking his dog at 8:30 p.m. last Thursday on the 6400 block of Woodcrest Avenue when police said he was approached by three juveniles attempting a robbery . The father-of-one allegedly pleaded for his life saying , 'Please do n't shoot me . Please do n't shoot me . ' But he was shot once in the chest . The suspects did not manage to get anything from him . Philadelphia Police Captain James Clark said : 'It is even more senseless , and even more troubling that nothing was taken at all and he lost his life . ' The boys were all caught on surveillance camera as they ran off into the night . They were all wearing hoodies and backpacks , raising suspicions that they could be schoolboys . Scene : The father-of-one allegedly pleaded for his life saying , 'Please do n't shoot me . Please do n't shoot me . ' But he was shot once in the chest , however , the suspects did not manage to get anything . Crime : Neighbors told Action News Stuhlman , a landscaper , usually walked the dog at night with his 13-year-old daughter , but was alone on the night that he was shot , effectively saving her life . Senseless : Philadelphia Police Captain James Clark said : 'It is even more senseless , and even more troubling that nothing was taken at all and he lost his life ' Police apprehended a group of boys fitting their description and searched the home where two of the boys lived at 64th Street and Girard Avenue . There , they recovered numerous assault rifles and hand guns and charges were filed against the teens . The boys allegedly told police that they were out playing basketball , and came up with the idea that they wanted to commit a robbery . As they walked down the street , they initially targeted another man , police said , but settled on Stuhlman because he looked 'less intimidating . ' Neighbors told Action News Stuhlman , a landscaper , usually walked his dog at night with his 13-year-old daughter , but was alone on the night that he was shot . Captain Clark said : 'My understanding is that his daughter goes for a walk with him almost every night . 'For whatever reason he said to her , 'It 's a little late tonight . I do n't want you walking with me . ' So in effect , he possibly saved his daughter 's life as well . '
Tyfine Hamilton , 15 , turned himself in on Friday in connection with the murder of James Stuhlman , 51 . His classmate Brandon Smith , 15 , is already in custody along with another 14-year-old boy for the alleged murder . The two boys were arrested after a search warrant was executed at their home Thursday morning