They thought it was an ambush. They were right, just in the wrong direction.
Three street punks had lured him down an alley by dragging a passerby in, making it look like a gang rape. It was no secret that he had something of a soft spot for young girls being abused, so her screams drew him in just like they wanted.
As he walked down the maze-like alleys, he clocked the two additional walking corpses who were hiding, planning to sneak up behind him. He walked by without alerting them that he was on to them.
Better to let them spring their trap, get them all at once. If the others hear me kill these two dipshits, they might bolt.
When he rounds a corner and finally finds them, it's about what he expected to find. The girl is laying on the ground sobbing, the trash nowhere to be seen.
He steps towards her, not to help, but to get the scumbags to come out of their hiding spots.
It starts with one of the followers, a small Asari, jumping on his back. She wraps her arms around his throat and squeezes, putting her legs around him to hold on.
He ignores her and lashes out at the others. The way he dealt with situations where he was outnumbered in hand to hand was to get aggressive, even more than his usual. Throw a punch at one, spin into a kick at the one behind, carry the spin into a backhand at another. Never focus on one, allowing the others to gang up on him. Keep them unsure of who he'll target next. While they're off balance, he can take them apart.
In short order two are dead and the other two are dazed, time to get rid of this pathetic bitch on his back. He walks over to the wall and turns his back to it. He slams himself backwards with every ounce of strength he can muster. The impact actually dents the wall. The Asari lets out a wheeze and drops to the ground, curling up in the fetal position, cradling her utterly shattered rib cage.
He looks at the human girl, now backed up against a wall with her knees hugged to her chest. She's looking at him with fear filled eyes.
"Don't look."
She closes her eyes tightly and presses her forehead to her knees. Three distinct cracks ring out. She doesn't dare open her eyes, not even after he tells her that it's over. After a moment, she's enveloped in two iron arms and being carried back towards the street.
When they get there, he sets her down, or tries to. She presses her face into his chest and wraps her arms around him, squeezing as hard as she can.
While she sobs uncontrollably, he reaches around her back and taps out a message to the police on his omni-tool. Once it's sent he stands still, letting her take what she needs.
By the time the Nos Astra PD arrives, she's quieted down. He leaves her with the officers and walks away. He turns when she calls out to him.
"T-thank you."
But I'm the one who got you into this.