Rationales
Athletics - Joaquin does not have a vehicle. If he needs a vehicle, he generally gets a ride. When he goes out to make a hit, he usually tries to set it up so that if the target bolts, it's a foot race. This and the perpetual problems with Lonestar encourage him to stay fit and he has the self-discipline (Willpower 6) to do it.
Clubs - Nothing like a good old baseball bat or pistol for beating someone down. Loco has also discovered that a Stun Baton makes up for his lack of mass.
Etiquette (Street) - He has grown up in the streets, lived at various ranks in a gang, helped keep a houshold afloat in the Barrens, and farmed himself out for hits. He talks the talk and walks the walk, even if you sometimes can't see who he is talking to.
Intimidation - One of his major food groups growing up, Joaquin was reared on intimidation and he took extra helpings. Having Q as a friend forced him to cow or be cowed and he chose the latter. He has learned that the prospect of violence can be more effective than actual violence.
Perception - Joaquin has been observant since he knew which way was up. It's always given him an edge and he keeps it well honed. Getting ambushed when you're trying to sneak up on someone is counterproductive.
Pistols - It was never hard to get Joaquin to train with pistols. He liked them the moment he hefted one. To him, they were an ideal extension of his being. They gave his hands death to match that in his eyes.
Stealth - This skill was well developed as young Joaquin tip-toed about his childhood home, avoiding the notice of Fidel. It was finely tuned tip-toeing around the streets, trying to avoid the notice of bodyguards. Moving quietly and hanging out of sight have become natural for Loco.
Unarmed Combat - Joaquin became quite good at this up until he learned to use a pistol. In the last few years, his skill has slid a little bit. With the prospect of Shadowrunning and the variety of missions he might have to take, Loco is thinking about hitting the ring and getting back up to snuff.

Rationales
Chemistry - One of the skills it was "cool" for him to be good at because of it's utility in the drug trade. Joaquin honestly enjoyed it, but his was not the path of science. His instructor, Mr. Fulgum, would groan in despair if he knew the applications this knowledge was seeing in the drug labs of Loco's barrio. Loco hopes to make Chemistry a hobby once again, providing Shadowrunning pays enough.
Gang Identification - Loco has performed a number of gang hits and he has to know when he crosses from one gang's turf into another, how to discriminate different ranks, etc.
Gang Procedures - Loco needs to know how gangs generally operate. When they sleep, if they ride and when, how they respond to bounties, how they maintain security, how they react to strangers, etc. While he may not know exactly how the Ancients operate, but he would know how go-gangs operate in general.
History - This is a passion for Loco. His typical companions generally put up with him talking about it when he does, but he usually prefers to slip away and read, watch documentaries, stop by a Matrix chat, or talk with Q. This hobby gives him a unique sense of fulfillment and belonging, and he gets a little edgy if deprived of it for too long.
Magic - With the instruction of Chacho and Q, Loco's own awareness of his powers, and his quick mind, Loco has learned a good deal about the workings of magic.
Police Procedures - Loco has been engaged in a deadly dance with Lonestar for most of his life. He's stayed one step ahead of them by studying and learning about his foe.
Security Procedures - Bypassing and overcoming security precautions is Loco's bread and butter and he could probably make a decent living trying to stop people like himself. This skill comes in handy for just about all of his targets.
The Finer Things - Q has taught Loco much about "the finer things of life". They passed away many hours with discussions of viniculture, fine horses, mansions, gardens, fine foods, and more. Loco has begun to occasionally indulge such tastes, but still only rarely.
Vocation: Hitman - He kills people. He has a knack for it. He has a home gang, but he is a member in name more than anything else. Where he lives, you are a member of a gang or a victim of them. He has taken hits against gangs, wage slaves, private security (esp. Lonestar), and even some mob targets.
Language Skills (9 points)

Rationales
English - Q is a demanding conversationalist and would scold Loco when he slipped into cityspeak and ganger lingo. Loco's lingo thrived just fine, but thanks to Q so did his proper English. If he can keep his mannerisms in check, this helps him pass as a run of the mill sarariman when necessary.
Spanish - The first language of his home and most of his Barrio, Loco owes his proficiency to Q as well, who taught him more than the simple gutter speak of his barrio.
Nahuatl - The language of the impoverished descendants of the Maya and Aztecs. Loco has picked up some of this from Q, who describes it as a language of spiritual power.