Florida police investigating a string of burglaries have arrested a 19-year-old man after he posted photographs of himself with some of the stolen goods on Instagram.The Palm Beach County Sheriff's office was already watching Depree Johnson closely in connection with jewelry thefts in several Boynton Beach retirement communities when he posted the incriminating evidence.Police arrested Johnson last Wednesday after obtaining a search warrant for his apartment.They were monitoring his social media accounts when he posted pictures of himself on Instagram posing with two guns - an act that led directly to his arrest.As a convicted felon, Johnson - who has been arrested on drug, car-theft, firearm-possession and trespassing charges previously - is not permitted to possess firearms.WPBF, the young man has so many prior convictions that when arresting officers asked him his occupation, he replied, 'Thief.'According to WPBF, detectives recovered the two guns and boxes of ammunition in Johnson's Lake Worth home - as well as about $250,000 worth of stolen jewels.A gang nicknamed the Dinnertime Burglars by police is responsible for around 30 to 40 break-ins since March, targeting homes of older residents and stealing valuable jewelry.Police said Depree Johnson is the ringleader of the gang after uncovered numerous pieces of stolen jewelry, watches, loose diamonds and electronics.According to the articles.sun-sentinel.com/2013-12-06/news/fl-lake-worth-inst , deputies uncovered a Glock under his bedspread, a Tec9 nine millimeter pistol stolen in Tennessee and a shoebox full of ammunition.WPBF reports that police are still cataloging all the jewelry recovered from Johnson's apartment.Johnson has been charged with 142 counts including theft and possession of weapons and ammunition by a convicted felon.Johnson is being held in Palm Beach County Jail in lieu of $60,000 bail.