![Raquel Saraswati on X: "“Japan” Greg Jackson was killed in the shooting last night in #Philadelphia. A father and boxer, he ran boxing programs for kids in the city. https://t.co/LAiscR75Fe" / X Raquel Saraswati on X: "“Japan” Greg Jackson was killed in the shooting last night in #Philadelphia. A father and boxer, he ran boxing programs for kids in the city. https://t.co/LAiscR75Fe" / X](https://pbs.twimg.com/media/FUgiTdwXwAIEGxu.jpg)
Raquel Saraswati on X: "“Japan” Greg Jackson was killed in the shooting last night in #Philadelphia. A father and boxer, he ran boxing programs for kids in the city. https://t.co/LAiscR75Fe" / X
![MMA Guru Greg Jackson Takes His Knowledge Global with New System | News, Scores, Highlights, Stats, and Rumors | Bleacher Report MMA Guru Greg Jackson Takes His Knowledge Global with New System | News, Scores, Highlights, Stats, and Rumors | Bleacher Report](https://img.bleacherreport.net/img/images/photos/002/874/247/hi-res-49384de92b78da6ca15561b784650cb9_crop_exact.jpg?w=1200&h=1200&q=75)
MMA Guru Greg Jackson Takes His Knowledge Global with New System | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
![Greg Jackson: 'It's my responsibility and duty to corner Jon Jones against Rashad Evans at UFC 145' - MMAmania.com Greg Jackson: 'It's my responsibility and duty to corner Jon Jones against Rashad Evans at UFC 145' - MMAmania.com](https://cdn.vox-cdn.com/thumbor/e9G-eUoiy0dmcgU0lh-IB4IYxC8=/0x1:398x266/1200x800/filters:focal(0x1:398x266)/cdn.vox-cdn.com/assets/1039336/jones_jacksonn.jpg)
Greg Jackson: 'It's my responsibility and duty to corner Jon Jones against Rashad Evans at UFC 145' - MMAmania.com
![Greg Jackson: 'Raw power' of Anthony Johnson and his 'loaded gun' will be 'real challenge' for Jon Jones - MMAmania.com Greg Jackson: 'Raw power' of Anthony Johnson and his 'loaded gun' will be 'real challenge' for Jon Jones - MMAmania.com](https://cdn.vox-cdn.com/thumbor/79RycclBcI_AiaAaFHgsqXwl50E=/217x270:2804x1995/1200x800/filters:focal(217x270:2804x1995)/cdn.vox-cdn.com/uploads/chorus_image/image/45670992/usa-today-7893131.0.jpg)
Greg Jackson: 'Raw power' of Anthony Johnson and his 'loaded gun' will be 'real challenge' for Jon Jones - MMAmania.com
![10 years later, the 'Sport Killer' Greg Jackson has no regrets about UFC 151's cancellation - MMA Fighting 10 years later, the 'Sport Killer' Greg Jackson has no regrets about UFC 151's cancellation - MMA Fighting](https://cdn.vox-cdn.com/thumbor/FB1p3N_6mt9bhMKSz2V1izcdJHw=/1400x1400/filters:format(jpeg)/cdn.vox-cdn.com/uploads/chorus_asset/file/23986730/135478623.jpg)