Help ID Me made new appeal to identify him, plus made reconstruction of his clothes.
Direct link to their appeal -
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Adding some of the images here - Dark blue sweatshirt with "Baseball '01" on the front, White T-shirt with "All Star Cheerleader" on the front, Black sports headband, Brown wallet
I checked Staten Island high schools for school colors. Port Richmond HS is on the north shore, 7 minutes/2.3 miles from Mariners Marsh Park. Port Richmond HS 'Raiders' uniforms are primarily red & white, but sometimes they also use blue as an outlining color or inverted. Scrolling down a little on the official website there is a photo of some girls in sports shirts that are blue with red numbers that remind me of the sweatshirt:
Port Richmond High School
The school is diverse, at 24.3% White, 30.6% Black, 7.0% Asian, and 37.8% Hispanic. (Wikipedia)
The sweatshirt is embroidered, too, so it is more expensive than just a silkscreen.
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A little better luck maybe on the white t-shirt. "All Star" cheerleading is the USASF organized competitive sport. USASF was founded in 2003 and is the governing body that establishes standards, safety, etc. "Island All Starz" is a competition team on Staten Island. If the shirt is so old, 2001-2006, then that type of lettering on a simple white shirt and slightly different word (Star versus Starz) might be something they sold to raise money? or for families to wear for support? The team colors of Island All Starz appears to be black & white & silver, maybe why the shirt is simple B&W? This is not the only cheerleading team on Staten Island***. The team's studio/gym address is 15 minutes/9.8 miles from Mariners Marsh Park in the Charleston neighborhood of southwest SI. Photos of cheerleaders at their website, note the team name 'ISLAND' on their tops, and the current Mom/family t-shirts that are black with silver lettering.
https://www.islandallstarz.com/gallery
Was this individual related somehow to this cheerleading group?
(*** The team 'Staten Island Elite Cheerleaders' has the word "ELITE" on their tops. The team 'Evolution Cheer' also uses the words 'all star' but they have "EVO" on their tops. Also "Island Allstars Cheerleading, Inc." appears to be the corporate name for the "ISLAND" team, but the address was slightly different, was Industrial Loop, now on Storer Ave.)
hth