Asmodai is one with the shadows as he blends into the dark street across from the Muleskull Tavern.

After watching several unsuitable patrons leave, he sees what he has been looking for: a lone half-elf exits the tavern, clearly intoxicated. Bingo.

Jal follows Asmodai about 20 feet away, keeping low.

Stealth roll, if needed(though it probably won't alert anyone to Asmodai, even if I fail): 17

Ignis observes the area for suspicious individuals. 11

Asmodai and Jal silently trail the Elf closely, while Ignis keeps farther away to avoid raising suspicions; so far, none of them have sighted anything.

Gotta keep your eyes peeled.

Passive perception: 14

Active perception roll: 23

Slow group;

"All right, Asmodai. I'll just ask the professor what the tests involve... maybe it's somewhat more risky than I hope."

Erik leaves the Yawning and head for Zalin's lab in the Diamond Street. If it's closed Erik return the next morning with his questions. 

"Have the potion been tested before?

Can I test it out there on risky jobs away from this lab?

If so how many test potions can a group of adventurers have?

Any other expriments we can help with?" 

Jal sees something: the glint of moonlight off a steel blade, down a dark alley which the half-elf sailor is headed.

If you're going to prevent another murder this night, you'd better act - and fast!

Ignis walks stealthily towards the drunken half-elf, as they're a bit to far away for his liking.

Rolls:

(Considering I have vibrant orange hair, am I disadvantaged?)

4      13

[Meanwhile, we join the Slow Group as Erik seeks to query Professor Zalin about his super-strength potion clinical trial...]

Professor Zalin is a little annoyed at being woken at this hour of the night, but when he hears Erik and his friends are interested in the clinical trial, he welcomes Erik into his lab.

"Yes, the potions have been rigorously tested in lab animals, but this will be the first humanoid trial. Sometimes magic affects humanoids differently than lower animals, you see, so we have to do these clinical trials."

"I'm afraid not; the potions need to be drunk here in the lab, inside a warding circle. For your own protection, you understand."

"I should have enough batches ready for a trial population n=4, maybe more if I hurry with the synthesis process!"

He doesn't have any other humanoid-subject experiments at the moment. If Erik's questions are all satisfied, the professor bids Erik a good night and a request to bring his friends.

Janus keeps his distance as he knows that being 7'3" wont work to his favor in this instance.

Asmodai Perception: 1

If Jal whispers to Asmodai he will make an attack with his Shortbow where the glint is.

Attack 19 Damage: 8 piercing Sneak Attack: 4

[We now return to our previously scheduled murder mystery!]

Jal has telepathically alerted the party to the blade in the dark alley; Ignis approaches the half-elf sailor, barely quiet enough to avoid detection. Janus keeps back, while Asmodai prepares a shot with his short bow.

The arrow misses its mark; the sound of the arrowhead hitting an alleyway wall alerts the half-elf sailor to his presence... And alerts the one with the blade as well!

Gunslinger's Initiative: 24

Half-Elf Sailor's Initiative: 9

Ignis rushes forward, knocking the drunk half elf aside. Athletics check 20 He then casts Burning Hands at the evildoer. 14

Dex saving throw for reduced damage from BH is 12...

Ripi will stand in the doorway of the lab with erik as he goes to test out the potion

Jal telepathically tells Asomdai, "I see a steel blade. Do something, quick." He then slowly advance, staying about 50 feat away. (Remember, advantage on initiative with Psychic focus)

(athletics check was for if I successfully knocked the half elf aside.)

Janus seeing that his allies have begun the attack rushes forward with long heavy strides and attempts to grapple the alleged murderer.

Athletics: 14

Jal uses Mind Thrust on the being he thinks might be holding the blade. (Saving throw DC 14 for whom I am attacking)

(Everyone at the Docks Ward roll initiative to see what order your actions resolve in.)

Initiative: 4